Question about Fowler Outside Micrometer Set 0 - 4"

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The smallest main scale division of a micrometer is 1/40 inch.There are 25 divisions in the thimble and the pitch of the screw is equal to one screw in the main scale. Determine the least coun tand show the scale diagram indicating a reading of 0.0206 inch.

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1 Answer

Why are 21,25,27, etc not prime numbers?


A prime number is a number that's evenly divisible only by one and itself. 21 is divisible by 3 and 7, 25 is divisible by 5, and 27 is divisible by 3.

See Prime number Wikipedia the free encyclopedia

Feb 23, 2015 | Computers & Internet

3 Answers

I have a fowler IP54 outside caliper micrometer 7-8" that is zeroed out. There are only 2 keys, a mm/in and zero. How do I reset to have it read 7.0 at 7.0?


Generally, micrometers are "zeroed" to a standard -- an object of a known specific length or diameter. If you have placed a 7-inch standard in the micrometer and brought the spindle into proper contact with that standard, and then zeroed the micrometer at that point, it will be properly set to seven inches. Standard micrometer travel is only one inch, and only that range is usually displayed. The user must then add the standard length to the face display or thimble reading to get the "developed" measurement.

Jan 08, 2015 | Fowler Measuring Tools & Sensors

1 Answer

How to fix E-05 error on a micrometer?


On the older ones, it means you overrode its ability to keep up with movement of the slide. Either you moved the slide too fast, or it has water, oil, or dirt on it. Reset by turning it off and on. Clean the scale first and wipe with a VERY lightly oiled rag.
But that reading looked like this: E--e5. If yours says Err 05, it's probably a newer one. In that case, call Mitutoyo to find out: 1--888-648- 8869.
-- Ed Huntress

Aug 15, 2014 | Mitutoyo 293-335 Coolant Proof LCD...

1 Answer

List 7 consecutive numbers none of which is prime?


114 divisible by 2
115 divisible by 5
116 divisible by 2
117 divisible by 3
118 divisible by 2
119 divisible by 7
120 divisible by 2

Aug 15, 2011 | Computers & Internet

1 Answer

I lost my owner's manual and need to know how to reset the micrometer to zero


This is based on an old Brown & Sharp guide book. 1. Carefully clean the measuring surface by pulling a piece of soft paper between the surfaces while the anvil and spindle are in light contact with it. 2. with the anvil and spindle apart, unlock cap with spanner wrench (supplied with unit), then tighten cap lightly with fingers to bring slight tension between thimble and spindle. 3. Bring anvil and spindle together by turning SPINDLE and set zero line on thimble to coincide with line on barrel. 4. Move spindle away from anvil by turning SPINDLE, NOT by turning thimble. 5. Holding thimble only, tighten cap with fingers. Do Not Touch Frame. Lock cap with wrench, still holding thimble only, and adjustment is complete. NOTE: Check zero setting after adjustment is made. Hope this helps

Jun 04, 2010 | Mitutoyo #117 107 0 1 Uni Mike Micrometer...

1 Answer

The locking nut on my micrometer does not lock anymore, can i fix this?


yes. Just remove the screw in the lock, lift the lock arm off its shaft, and reposition at different angle. (put to lock, take off without turning, and set back on at unlocked position...may ned adjusting)

good luck

Mar 28, 2010 | Mitutoyo 0 1".001 Fric/Thimble Mti Outside...

1 Answer

Thimble on 0"-1" micrometer is tight.


spray some silicone into the thread areaand open and close it a few times.

Mar 04, 2009 | Mitutoyo 0 1".001 Fric/Thimble Mti Outside...

1 Answer

Missing Thimble screw


You can most likely get one at a clock repair shop if Mitutoyo won't help you out.

Jan 22, 2009 | Measuring Tools & Sensors

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