moore and wright micrometer adjustment

This website or its third-party tools process personal data (e.g. Be sure the measuring faces are clean. If the last line you saw were a 5, then you would have 5 mm thus far. Probably not. . 964, centre: Mitutoyo 103-137, right: Daniu 8 micrometer. First, make sure the spindle is backed a few turns away from the anvil. Unfortunately, they are often found without the second piece. 0-25mm Brand new never used. JavaScript is disabled. A Eurocopter EC-135 police helicopter of the Bavarian State Police. 1,693. If not, maybe you can make one? 971 at the best online prices at eBay! These techniques and skills need to be taught to the new generation.When they shut down shop class, was the worse thing schools could have done. . I usually work using a shop apron on. Works now like a charm. Complete with original box and care/adjustment sheet. This may release some tension and allow some motion, then the unit will need to be calibrated. This guide applies to outside micrometer calipers, but also applies to some other types. There are a lot of ways, and everyone has their favourite. Slip the thimble back over the spindle and put the cap on loosely. On an older unit, these may be covered with crud or rust. . When inspecting the tool, two things come in to play: visual inspection and tactile inspection. We don't want to trap air or, worse, water in there between two seals made of oil, do we? If not, another rap. 121.06. It gets in the joint and makes adjustment a challenge. This is pretty much consistent with the faces being a little out of parallel, and the thread being a little worn at one end of the range. DO NOT force it if it will not rotate. It probably won't line up right, but get it close. Once the parts are clean and rust free, light machine oil, like watch oil, sewing machine oil, or, believe it or not, micrometer oil, should be used to wipe the inside of the thimble and the out side of the spindle cylinder. Take care of the wear adjustment ring. The correct wrench is often missing, but the tang is a full fit for the slot. Even a single strand of lint can make you day go bad. I called Starrett and they want 79.00 to rebuild this micrometer. Answer 17200. MOORE & WRIGHT ADJUSTABLE MICROMETER NO 933B - AU STOCK C $53.24 C $35.18 shipping NEW MOORE & WRIGHT MW210-041 Micrometer 7-8" 0.0001", Carbide + Standard WL52.1 C $117.00 Was: C $156.00 C $25.00 shipping moore & wright 961B micrometer 0-1" outside tool .0001 graduation C $47.65 or Best Offer Moore & Wright 11 pcs. In either case, this is not desirable. You will need to remove the thimble to do this. This is what the cap works against. Carefully run the spindle into contact with the anvil. If we look inside the outer section of the thimble, we see that there is a lip at the end with the marks. With roots fixed firmly in Sheffield, England, the company began by manufacturing a range of calipers, screwdrivers, punches and other engineers tools. "Mitutoyo digital can either be electronic digital with an LCD display (digimatic/ABSOLUTE digimatic), or mechanical digital, with mechanical dial counters (193 series, for example https://ecatalog.mitutoyo.com/Digital-Outside-Mic ).If you mean the mechanical type, these are fairly easy to deal with once you know the construction, and they are fairly rugged, so moderate force can be used. Made in Switzerland. You can hold the thimble with your fingers. Moore & Wright (Sheffield) Ltd. Buy Moore & Wright Outside Micrometer here. Generally blind folks were employed as inspectors who were employed by remploy to do monotonous 100% inspection, like bullets and bolts, it was a job for them, the only job they could get, gone im afraid, moore and wright used to supply the mics. The spindle has a thread pitch of 40TPI, meaning that the screw will advance 1/40" for each revolution, and each revolution represents 25/1000". To adjust this mic, loosen the screw in the side by the anvil. How to disassemble cheap Alltrade micrometer. Due to the rust freeze, the thimble was removed first. If the speeder hadn't been damaged, I would have used a different soft jaw plier on the outside of the speeder body. The original case for the micrometer did not have a slot for a wrench as many other cases do. 2023 Copyright Practicalmachinist.com. One sharp, light rap with a 200g (8oz) hammer while supporting the micrometer frame with my free hand to prevent it dropping. Get it Wednesday, 12 Apr - Thursday, 13 Apr. Mitutoyo 102-301 Outside Micrometer 0-25mm . . Key selling points were that the sleeve could be replaced when worn, and that there was a second nut and a spring to allow for take-up of play. If there is significant play, unthread just enough to allow the adjuster to be separated from the sleeve, turn the adjuster one position, and retry.. If the adjustment does not want to move, we are back to the penetrating oil and mineral spirits. If this has ever happened, the lock will be sprung small, and the micrometer will never operate correctly. Unusual is that the thimble screws onto the spindle thread, and the end screw is only for locking it in place. Keep going until it loosens up enough to slip off or you have backed up 3 turns or so on the cap. Part No: MEB-MW201-01DAB. Now, hold the thimble and snug the cap with your other hand. UK. Register for the worlds largest manufacturing technology forum for free today to stay in the know. I didn't use the wrench until I was sure it wouldn't be broken. Some people put the screw back in about one turn shy of tight, then rap the screw with a hammer while holding the thimble in the free hand or a soft vise fixture. These adjustable depth micrometers conform to BS64681984. I wear the neck loop and the apron spread over the bench so if I drop one, it is caught. It can be worked off the barrel, but there is a friction spring under it (in every instance I have seen) that will come loose. Be careful not to drop the jam screw. Are the faces worn or does one have a burr on it? See details With the threaded nut fully remove the 3 fingered sleeve is still extremely tight. I generally use a small blade type screwdriver as a wedge behind the lock ring. These early, classic designs are regarded as the origin of today's comprehensive range of micrometers, now used in every industrialised country throughout the world. In the absence of a wrench, a properly sized steel pin can be inserted in the hole, and a piece of wood with a properly sized hole can be cut in half to hold the pin. This is a precision grind and polished smooth, not right off a bench grinder. Here, we look at how to adjust older Brown and Sharpe units and older Tubular Micrometer Company (later Tumico, then Scherr-Tumico, and now ST) units. First, lets look at how it SHOULD be. The spindle may not go through the spindle lock without wiggling the lock assembly a bit. Thanks again. I use a pin punch (the punch has a flat end and parallel sides. 925MF Metric -13mm/.01mm, New Old Stock $ 75.00 Buy It Now $5.65 Shipping Condition: New - Open box Location: Phoenix, United States The last picture shows its size in comparison with a Starret 220 (Starret 220 not included). The anvil stem is threaded, and you rotate it from the bottom to adjust the position. Number of adjustment notches: 1: Reading: 100/200 mm: Admissible error: 0,003 mm: Spindle diameter: 6,8 mm: Graduation: 0,001 mm: Show UNSPSC/ECL@SS. I always wondered about what goes into a micrometer. It is a pair of thin metal shells that need to be able to move relative to each other. 10-27-2013, 01:02 PM. In this case, the spindle was free. 4 years ago If the thimble is straight and concentric, no rubbing is going on, and lines close to zero when the spindle is brought in to the anvil, then it is backed off and the crew given a final tightening. While applying gentle pressure, thread in the spindle. Be careful. One engages the slot in the spindle to rotate the bushing the gear is on, and if the spindle is retraced too far, this is what jams. Time and hand work pretty much get it free. If it won't, it is possible that the the adjuster was swapped from another mic, there is debris in the threads, or there is damage. Once removed, the parts were cleaned with a brass brush and mineral spirits. It may take several iterations to get it right. No corrosive chemicals. FREE Delivery. Oh, and penetrating oil. Once the spindle is in, run it through the entire range. There should be two pieces visible: the one threaded into the frame, and a second one still under the thimble. Publication date 1961-01 Usage Public Domain Mark 1.0 Topics tool catalogue, engineer's tools, machinist's tools, measuring tools, screwdrivers, punches and chisels, wrenches, hack saws, tool boxes and chests, tool catalog Collection It has approximately 33,500 armed officers and roughly 8,500 other civilian employees. Is the frame bent? A light rap on the end of the wrench in the loosening direction may help. Price: 41.17 (49.40 Inc VAT ) Quantity: RDG Tools Catalogue | Moore & Wright Section | Moore & Wright Micrometer's | Moore & Wright Micrometers "Imperial" Do not turn the ring, or the lock may compress making spindle insertion impossible. I havnt recieved it yet it was supposed to be delivered fri but i should recieve it any day now. Is it possible to remove the threaded sleeve that lives under the barrel? (25 mm) can easily be used in one hand as shown below. moore and wright micrometer gauge 966B in original box . Test fit the lock assembly over the spindle. The cap is replaced and threaded down until it touches the button, then BACKED OFF about one turn. It was sticking. 4 years ago. Be the first one to write a review. Next is sprung fingers on the play/friction adjustment. 50-75mm . I made up special tools for dealing with this (and a special tool with tapered threads for springing the segments back out) , but I, obviously, am not well. In this case, the screw is part of the speeder assembly, but micrometers without the speeder and use a headed screw, most often slotted. Gauge block. If there had been rust on the threads, then that would have been the end of the job. I don't know if the electronic type are set up the same way. I'll be sure to keep an eye out for a micrometer next time next time I'm cruising garage sales. With more than 10.6 million unique visitors over the last year, Practical Machinist is the most visited site for metalworking professionals. If not, then we go for the penetrating oil and time, with maybe a little heat mixed in. It should come out freely. Moore & Wright micrometers. The micrometer under evaluation is old and beat and rusty. The current (2016) closest equivalent tool from Starrett lists for about US$140 (the 436.1XFL) new. $70 Negotiable Tarneit, VIC 08/03/2023 Vintage PAV disc flange micrometer, Switzerland Offered for sale is a vintage PAV 'paper' disc flange micrometer with parallel, flat disc anvil. The same tool in better condition, but cosmetically poor, commonly goes for less than US$10. Once out, it was cleaned to remove the last of the rust using the same lint free cloth and brown paper technique. Your slots look ok in the pictures, but whether the stem is straight, so that the faces are parallel, only you can tell with the unit in hand. You will distort it and ruin the tool. Why would I spend even one thin dollar to buy it? The thimble is held on by a screw through the end. Cool. 2 years ago. This will allow for easy reassembly, easy adjustment, and help keep crud and moisture out so it can be adjusted again in fifty years. Fixing and calibrating a rusty seized Moore and Wright 2 inch imperial micrometer I bought for a pound (1) at a car boot sale! In addition, the fine adjustment is done by rotating the graduated end of the thimble relative to the rest. It wasn't needed here, but, if the penetrating oil doesn't get through in a few days, a little heat can help. The outside was cleaned with steel wool and oil. 21.00 8 ACUTE ANGLE ACCESSORY AAA 64.00 9 FINE ADJUSTMENT KNOB BPRO/24 4.00 9 FINE ADJUSTMENT KNOB BPRO/24-S 4.00 . THESE ARE SMALL SCREWS. V-block. I don't recall for certain which hole is which (I have a few around and may pull one apart for an instructable if I ever have the time, but I don't get into these too often anymore), but I think this is the one closer to the anvil end on the micrometer (away from the thimble). You can get a good fit in the hole and provided it's not. Use the force control device (friction collar or ratchet) if present. Abrasive paper can be used, but it is awkward to get in, and getting rid of the residue can be difficult. Magnetic base maw std adjustment R 719.00 Incl. The ring for the lock turned freely in the unlock direction and caught the lock pin in the lock direction. In my experience the sleeves on Moore&Wright micrometers are all just a bloody good fit on the body, but only held by friction. Modern micrometers, nearly all except some digital types, specialty types, and the very cheapest standard types, adjust by rotating the barrel with a micrometer wrench. After insuring the measuring faces are clean, the spindle was run in to just contact the anvil. If it won't move after a week or so with penetrant, then decision time comes in: let it be, or up the ante a little. Available to order. Base Length 63.5mm / 2.1/2 Then, a light wipe of oil on the spindle end taper, wipe it off to leave a bare minimum film, and place the thimble on lining its zero mark with the index line. Just loosen the cap a half turn, adjust, and snug it back up. Bowers also own Baty who I think still have UK manufacturing, so some of the M&W stuff might be sourced from UK suppliers, but other stuff is definitely imported. Let's examine the evaluation, repair, and adjustment of a second hand Starrett model 436, one inch range, 0.001" resolution caliper. Moore and Wright 1966/2 External Micrometer. PAGE 1 961 AND 965 SERIES EXTERNAL MICROMETERS PAGE 2 966 SERIES EXTERNAL MICROMETERS PAGE 3 961 AND 965 SERIES . Most likely, the setscrew that engages the slot in the spindle is wedged at the taper-out of the slot. Too much freedom isn't good since this friction needs to hold the final adjustment. Once the spindle tension and play are set, zero adjustment can be done. After several minutes working the threads back and forth, the spindle advanced until it just about met the anvil, and I was able to clean off a lot of the rust. The lock can be opened up using a small blade screwdriver to carefully spread the gap. If the thimble is clamped up for this, it is quite likely to be distorted and bind up forever. You accept the use of cookies or other identifiers by closing or dismissing this notice, by scrolling this page, by clicking a link or button or by continuing to browse otherwise. As it was removed, there was no binding or rough spots. Add to Favorites Vintage Moore & Wright No 45 Protractor Depth Gauge ad by VintageAndWoodCo Ad from shop . The spindle should turn freely. Any damage to the face limits the utility of the tool and can affect the accuracy. moore-and-wright-micrometers Identifier-ark ark:/13960/t9386309t Ocr ABBYY FineReader 11.0 (Extended OCR) Page_number_confidence 92.16 Ppi 300 Scanner Internet Archive HTML5 Uploader 1.6.4. plus-circle Add Review. moore & wright: 943MX. 20.88. 07-21-2013, 04:52 AM #6. mikezbitz. There are more comprehensive checks that could be done, but the errors that have shown already don't warrant going there. This is good. MOORE & WRIGHT externes Mikrometer 3"" - 4 - EUR 14,80. ANY burr raised on the thread, inside or the adjustment threads, will ruin your day. I just my Starret 436-1" from a pawn shop's dollar box. You are using an out of date browser. Hang it on the wall. I apply it with a sewing needle. Registering will also stop those annoying popup link ads from appearing. The spring between them applied preload so that the screw always bears on the same face of the thread. The inside of the thimble and the outside of the cylinder in the spindle need to be clean and smooth, and ANY crud inside the thimble needs to be removed. Snug the lock screw and recheck. I think its only .001" out; as when the faces just touch the line is on the 1. The paint is worn, but there are no dents or dings that imply that the tool was dropped. This is a watchmaker trick.To free the spindle if the screw is by luck exposed:Remove the jam screw.Loosen the engagement screw about two turns.The spindle is now free.To reset:Hold the bushing in place with the screwdriver in the screw.rotate the spindle until the slot lines upGENTLY turn the screw in until contact, then back out maybe 1/8 turn (this sets the free play/backlash)reinsert the jam screw and snug it.If the proper screw is NOT aligned, you might try removing the thimble (it is a taper seat type) and loosening the thread wear adjustment nut. Watch through the bore for alignment. Starrett 0-1" No. This does not put the zero of the thimble over the index. They are best known for their conventional graduated thimble mic's, but also manufactured a mechanical-digital line (the `SpeedMike', also rebranded for a number of distribution channels) for many years. This micrometer uses a lock ring that closes a slotted collet around the stem. Moore & Wright Founded in 1906 by innovative engineer Frank Moore, Moore & Wright has been designing, manufacturing and supplying precision measuring equipment for over 100 years. 124.80. Many of the "economy" micrometers fail pretty much every inspection point out of the box, and, even in need of work on the measuring faces, this is more accurate and more repeatable than a number that have come across my bench. It may take a few days for the penetrant to work in. Lapping the faces is really something that can be done most accurately and economically by a professional, but this takes money, not time, so it waits until all other issues are addressed. The joint is next to the hole for the wrench, which is also a size that is difficult to find. It is a scrape and wipe job. No abrasive, just lint free wipes and brown paper. This will need to be lapped later, and the spindle face needs it as well. No reviews. Is there a video on how to change an anvil on a pitch micrometer for starrett? At one time it was necessary for machinists and mechanics to be able to make, maintain and repair their own tools, today it has become a lost art. With the micrometer measuring faces touching (in this case, on the gauge block), hold the knurled section of hte thimble and rotate the graduated section until zero is lined up. Congratulations. Moore & Wright 891M150 Adjustable Depth Micrometer 0-150mm/0.01mm 234.64 2 remaining at this price! Any recommendations on how to fix this? Moore & Wright 200-01 Ext Micrometer . Like other micrometers with the rotating sleeve, there should be a fair bit of friction from a flat spring between it and the barrel, and the sleeve may be move axially when it is rotated if axial force is applied. You are done. This is no longer common on quality micrometers, but, properly implemented, is quite reliable. That, with the pattern of rust on the surface and little pitting on the spindle, led me to believe that the spindle was rusted in at the exposed end, but the rust wasn't into the threads, so, if nothing else, I could cut the frame and spindle and use the thimble end as an adjustable lathe stop. There is very, very little clearance. Thanks . A small drop of oil on the spindle and run it in until it is a few turn from contacting the anvil, adjusting the wear ring if needed. of Anvils: - If you are lucky, you got an adjusting wrench with the micrometer, or, like me, have the appropriate one. A dial indicator (also known as a DTI, clock indicator, dial gauge, probe indicator or comparator) is a precision measuring instrument used for several applications across many industries where precision is necessary, such as manufacturing, packaging, engineering & design. This all comes at a price. Moore & Wright. The spindle needs to be held by the smooth portion in a soft, firm holder, such as a piece of soft wood with a hole slightly smaller than the spindle that is then split through the hole. Any gap or unevenness in the meet is a negative. Founded in 1906 by innovative young engineer Frank Moore, Moore and Wright has been designing, manufacturing and supplying precision measuring equipment to global industry for over 100 years. The thimble is a light friction fit on the taper, which holds it centered and straight, and positions it along the axis of the tool. The position is locked by the screw or speeder in the end. The rust on the thimble doesn't matter as long as there isn't heavy pitting. There are other possible reasons for tightness (mechanical damage such as a bent spindle, raised dings, wrong spindle in the body, for example) but I can't address these issues without seeing the unit, and Starrett is easier and less expensive than I am, and they have a full stock of spare parts. Before we continue: DO NOT try to grab the thimble with a vise. Check the alignment and look for anything that might cause binding and retry. 925MF Metric -13mm/.01mm, New Old Stock - $102.08. Good tools are expensive. When a properly sized tool is found, insert the spindle in and press the tool against the missing part inside the thimble. Moore & Wright 1966MB150 Ext Micrometer 125-150mm . They have a smaller inherent uncertainty than calipers, in part because they satisfy Abbe's Principle, properly used have greater immunity to the influence of operator technique, and generally have an order of magnitude greater precision and accuracy. A reasonably inexpensive caliper may indicate to a precision of 0.01mm (0.0005") and have a claimed accuracy of 0.03mm (0.0015"). A common German mile, land mile, or post mile ( Gemeine deutsche Meile, Landmeile, Postmeile) was defined in various ways at different places and different times. It should be stiff, but should not need excessive force. The concern here is the conventional type, which has a design quite different than any other. Once the barrel was lightly held, I tried to rotate the frame in it. Had it been dropped? Older mics often have barrels that won't turn easily, or are even rusted solid. Many older mechanical micrometers, and a few modern ones, are adjusted differently. The spindles were silver steel but the screwed portion was mild steel. At this point, final adjustment is done. I have a Brown and Sharpe No 10 older version and it does not appear that the thimble comes apart. Although it possibly dates from the 1930s (it is in the 1936 catalogue) it is in near . In case of sale of your personal information, you may opt out by sending us an email via our Contact Us page. A little finagling of the lock assembly will generally get it in, only to need a little more to get back into the last bit of the frame bore. The other type, from the Tumico lineage, has the thimble set on a taper at the end of the spindle, like modern Starrett, B&S, and Mitutoyo, and other decent makes. 965 (0 - 1") and no. Turn the anvil stem can be turned to adjust the zero position. Sweet!! Reviews There are no reviews yet. When you look at the new one is there any sign of a groove or hole that might indicate a "retaining" mechanism of some sort ? Simply select your required attributes below and hit the button Measuring Range Max: 25mm Graduations: 0.01mm Accuracy: - No. Work it both ways (righty-tighty and lefty-loosey). Rusty threads make it impractical to repair, as it will never operate smoothly and accurately. A fairly sensitive adjustment of friction can be made, and the wave washer provides enough friction to hold the adjustment well. The goal is to not ruin the precision of the tool. Moore & Wright Verniers 4-5" Vernier Gauge Engineering micrometer adjustment 45.00 4.50 postage or Best Offer Moore and Wright 6 Inch Depth Gauge micrometer 20.00 Click & Collect 3.35 postage or Best Offer 100 to 200 mm MICROMETER SET - NEW UNUSED - BELIVED TO BE MOORE + WRIGHT 144.00 or Best Offer This is mostly time. 4 years ago. Swapping parts is sometimes possible, but there have been a number of variants over the years, and there are parts that are incompatible,. Back out the spindle a few turns by grasping it with your fingers, WITHOUT touching the thimble. Would heating the old sleeve with a heat gun help get it off by expanding it a little bit? The upper part gets lost if the spindle is fully removed carelessly, but usually it ends up threaded well into the thimble. 925MF Metric -13mm/.01mm, New Old Stock. ), and reseating the thimble at the correct zero location. First, lets look at the parts of an outside micrometer caliper, or mike for short, and how it operates: The feature is measured between the face of the anvil and the face of the spindle. For a better experience, please enable JavaScript in your browser before proceeding. If it didn't go in dead freely, then the fingers for the wear adjustment could be gently spread using a small screwdriver in the gaps. Tight enough doesn't need a lot of torque. (I have three 436-2's with no interchangable parts-- different spindles, thimbles, and frames, including two different tapers for the thimble mount-- except the ratchet and the lock). Then, a drop or two of penetrating oil at the top to get things started. Thank you very much for this. Once the cap is loose, we can remove it to see that there is a machined button end on the spindle and a machined annular surface inside the cap. Honestly, because I knew that even if it was irreparable, I can still use it for parts. Once the spindle was removed, the lock was removed. If it is bent, you have an ornament. I prefer not to, as, even though it should be a light, sharp rap, speeders and screw heads can be damaged, and sometimes even the threads. The big concern is the rust. The Brown and Sharpe manual specifies this be done by grasping the spindle, not the thimble. Calibration is where we establish a relation between the reading of the tool and an actual measurement. Find garden cottages to let or rent ads in the KwaZulu-Natal Other Hand Tools section | Search Gumtree free online classified ads for garden cottages to let or rent and more in KwaZulu-Natal Other Hand Tools Mineral spirits to get oil and residue off and light oil, cotton swabs, and bamboo skewers to remove residue, grime, and rust. Be careful. The threads were clean, so not a big deal. This combination has the advantage that the alignment of the edge of the thimble with the barrel graduations can be adjusted, allowing the user to set it to fully expose the graduations or split them, at her preference, by running the thimble further up or down the spindle thread. If I could bring them together, I would look for alignment of the spindle with the anvil and see if the faces meet plane-to-plane. Calibration? Since the measuring faces are less than perfect, and I have no history of the device, I also checked several other factors. See Details. Location. Now we want to know: how good is it? | Business, Office & Industrial, Industrial Tools, Measuring Tools | eBay! To learn more, please refer to the cookie policy. To assemble the tool, slip the wear adjuster onto the spindle and start the threads a few turns, then slip on the spring, and insert the spindle into the sleeve in the frame. 5 out of 5 stars (9) $ 26.53. The manufacturers sell replacements. Little force should be needed. Moore & Wright - Micrometers, Probes, Digital Verniers, Internal Calipers, Dial Calipers, Measuring Frames & Feelers. The manufacturer instructions are available at: https://archive.org/details/ToAdjustASlocombMicrometer. This has a ratchet thimble. A small drop of oil on the threads and run the spindle in. There are 25 uniformly spaced marks around the circumference of the thimble that allow measurements to be read to 1/1000". Scherr branch, originally Reed Small tools, type, and a Tumico tubular frame. BEFORE DOING THIS: there are two setscrews in each location. Feb 3, 2021. Bamboo skewers and cotton swabs do most of the work here, with a little oil. One method is paint the whole side, working the paint into the lettering, wipe the excess off carefully while still wet, then, when the paint is dry, clean the surrounding area with fine, mild abrasive you have.Another is with paint sticks made specifically for filling the letters. The assemble comes out as a unit, and may require a little finesse. The thimble can be mounted in any rotational position, so cutting the threads on the spindle and body is easier in manufacture than if they needed to be cut to an alignment. Share it with us! Answer The tool was bought at a yard sale for US$1. Study with Quizlet and memorize flashcards containing terms like According to lecture the modern concept of human rights as we use it today developed from which of the following sources:, According to Dr. McCarty's section introduction, W.E.B. In my experience the sleeves on Moore&Wright micrometers are all just a bloody good fit on the body, but only held by friction. While the oil was soaking through, light rotation of the spindle helps, like with any stuck screw. If it is dripping wet with oil, the oil attracts and holds dirt. I guess it just needs a small adjustment. All; Measuring & Test Equipment; . Plastic Case, Adjustment Key: 246g: 1: 0.00 * This product is available until stocks are exhausted. Next on the slippery slope to precision measurement is often a micrometer. Incorporate all the half millimeters in your measurement. Has it been hit with a hammer? I have one (Non-Mitu) that is, and others that are very differentIf gentle to moderate force turning the spindle closed doesn't free it, then backing out the setscew should. Even if it won't rotate, trying will help work in the oil and, eventually, it will probably come free. MOORE & WRIGHT VINTAGE Micrometer Model 965 made in Sheffield England Pre-Owned C $34.94 Top Rated Seller or Best Offer howardspawnbellscorners (1,384) 100% Free shipping Sponsored VINTAGE MOORE & WRIGHT INSIDE MICROMETER WITH CASE AND ANVILS Pre-Owned C $120.09 Top Rated Seller Buy It Now h.resale_llc (23,020) 100% from United States Sponsored

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