Model # 102

Internet #100659779

General Tools Professional Micrometer

General Tools

Professional Micrometer

$1597 /each
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Product Overview

General Tools has grown to become the recognized industry leader for specialty hand tools and instruments. Generals #102 Micrometer is a practical and economic measuring tool for hobbyists and do-it-yourselfers. It is also great for day-to-day use in tool rooms and machine shops and has a guaranteed accuracy to 0.001 in. The satin chrome barrel and thimble offer easy to read etched black graduations and the spindle is equipped with a lock for taking repetitive measurements. This item is also available as part of a set which includes a carbide scriber and satin chrome ruler.

California residents: see   Proposition 65 information

  • Satin chrome barrel and thimble with etched black graduations
  • Ground and polished carbide measuring faces
  • Spindle lock for repetitive measurements
  • Includes spanner wrench for simple zero adjustments
  • Durable construction
  • 1-year warranty

Info & Guides

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Name Professional Micrometer 45 ft. Ultrasonic Distance Estimator with Pouch 35 ft. Laser Measure 65 ft. Laser Measure
Brand General Tools Measure Master Bosch PowerSmith
Ratings (13) (29) (55) (0)
Measurement Standard SAE Metric,SAE Metric,USS Metric,SAE
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Product Depth (in.)
Product Height (in.)
Product Width (in.)
Resolution (in.)


Display Type
Hand Tool Type
Measurement Standard
Tools Product Type
Hand Tool

Warranty / Certifications

Manufacturer Warranty
1 Year

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Customer Questions & Answers

Is it metric or standered

Asked by: Roger
The micrometer is SAE.
Answered by: CommunityAnswer
Date published: 2017-03-31
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Customer Reviews

Professional Micrometer is rated 3.9 out of 5 by 13.
Rated 3 out of 5 by from Sub par calibration The tool arrived about 15 thousandths off. And the barrel has quite a bit of run out.
Date published: 2017-02-02
Rated 5 out of 5 by from I am a former machinist. This a excellent tool.... I am a former machinist. This a excellent tool. Works well.
Date published: 2017-05-16
Rated 5 out of 5 by from Way better than I expected! My Brown & Sharp and Lukin tools went "away" when I retired and sold my shop. As a hobby now, I reload ammunition (bullets) and needed to make very precise measurements of bullets, prior (and after) reloading. A 38 special revolver uses bullets .358 in diameter, A 9mm uses .356 diameter bullets. How else would I know, which one to use? This micrometer works excellent! I am DEFINITELY a happy customer!
Date published: 2013-09-06
Rated 5 out of 5 by from Great little tool I also wanted to measure my rotors and this little guy did the trick. This device is much smaller than others I had looked at which cost $40 and up. If I had bought any of the larger ones I would have had to take them back due to the tight space between the rotor and brake shield. It doesn't say this in the specs but its max measuring width is 1 inch. One thing to watch out for is not to wipe off the lubricant that's on the barrel. I mistakenly thought I was cleaning it off but that was not the case so I had to re-lube it. The car I have is BMW 328xi E92, so yes it will work for you if you also have an E9x body style. My brake shield got in the way, but I was able to flex it back just enough to get the micrometer in there, without permanently bending the shield.
Date published: 2011-10-03
Rated 4 out of 5 by from competent processing and delivery The micrometer is as advertised unlike my recent tool rental
Date published: 2015-02-12
Rated 1 out of 5 by from Unsatisfactory in all respects I have many tools made by General. Most are pretty good. Not so with this micrometer. For something that is supposed to be a precision instrument, it is un-usable. I have good tools from General that are made in the U.S. For this micrometer, they went to the lowest production standards, farmed it out to the far east, and ended up with a dud. The spindle thread is so rough there is no way to get a good measurement, and the thimble click sticks. I sent it back for a refund. Don't waste your money. After years of using General Tools, I'm done with them.
Date published: 2012-03-21
Rated 4 out of 5 by from Good purchase Worked for what I needed -- measuring the thickness of a brake rotor. Great price, and I got the info I needed: Replace the rotor!
Date published: 2011-09-07
Rated 4 out of 5 by from Does exactly what I need it to do. Needed to verify paper thickness, does what I expected at a much better price than anticapated.
Date published: 2012-10-12
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