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Handy disc checking standard for pocket or tool box. Meets or exceeds federal specification GGG-C-105c for accuracy.
- 1/4" hardened tool steel
- Precision ground and lapped
- Size clearly marked
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Thread Micrometer Standard for setting or checking thread micrometers. Meets or exceeds federal specification GGG-C-105c for accuracy.
- Hardened to Rc 62
- Lapped to 4 RMS finish
- 60° male, female ends
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(24 items)
Solid Checking Standards for checking or setting tools and gages. Meets or exceeds federal specification GGG-C-105c for accuracy.
- 1/4" diameter hardened steel
- Lapped to length
- Size clearly marked
- Furnished with insulating handles
- Individual standards or sets available
- Sets furnished in wood case
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(48 items)
Master Checking Standards for comparing or setting tools and gages. Meets or exceeds federal specification GGG-C-105c for accuracy.
- Hardened steel contacts
- Lapped to length
- 12" thru 35" are solid steel, 36" and larger are tubular steel
- Size clearly marked
- Furnished with insulating handles
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Calibration masters have nine steps to explore out-of-parallel micrometer anvils in 45° increments, and determine other wear.
- Accuracy to ±.0001"
- Protective metal case
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Set contains 27 masters for surveillance of 1", 2" and 3" micrometers. Steps in decimals survey out-of-parallel micrometer anvils in 45° increments, and also determine wear.
- Accuracy to ±.0001"
- Serial numbered in case
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(2 items)
Set has twelve settings for checking caliper anvils, jaws, jaw frames, and rack lead error.
- Wood case
- Accuracy to ±.0001"
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Chrome finished set in 1/2" increments is hardened, ground and lapped for longer life and accuracy in 1" to 6" range.
- Accuracy to ±.0001"
- Polyethylene Cover
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Chrome finished set with six 1" increments is hardened, ground and lapped for longer life, greater accuracy in 1" to 6" range.
- Accuracy to ±.0001"
- Polyethylene Cover
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Set has twelve steps calibrated in 1" increments. Can be used for checking and setting mandrel micrometers.
- Accuracy to ±.0001"
- Polyethylene Cover
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Set has six steps calibrated in 1" increments for checking accuracy of 6" size depth micrometers and proper seating of rods. Range 1/2" to 5-1/2".
- Accuracy to ±.0001"
- Polyethylene cover
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Has a range of .500" to 11.500". Steps .500" to 6.500" are accurate to ±.0001"; steps 7.000" to 11.500" are accurate to ±.0003".
- Accuracy to ±.0003"
- Polyethylene cover
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- Set includes: 1 of each of the following grade 2 rectangular gage blocks: .105", .210", .315", .420", .500", .605", .710", .815", .920", 1.00", (gage blocks are supplied with a certification of accuracy traceable to NIST)
- 2 optical flats: 1" x .500" double surface and 1", .5125" double surface both are parallel to .00002" and flat to .000004"
- Set is supplied in a fitted wood case
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- 26 pairs of precision balls: 1 pair of each size: 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2", 17/32", 9/16", 19/32", 5/8", 21/32", 11/16", 23/32', 3/4", 13/16", 7/8", 15/16", 1"
- Chrome steel hardened to 63RC
- Ground and lapped
- Grade 24 accuracy - AFBMA Certified
- Provided in a sturdy case
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