For zero setting of inside micrometers, three points internal micrometers and bore gages.
Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
For example, the ordered size is .2”, the size marked on the setting ring when supplied may be .20008″.
Related products
Measuring/ Inspection Instruments
Insize 4120-10, METRIC THREAD RING GAGE, GO, M10x1.5, 6928640341458
$64.03
Measuring/ Inspection Instruments
Insize 4120-16N, METRIC THREAD RING GAGE, NO GO, M16x2, 6928640341809
$52.16
Measuring/ Inspection Instruments
Insize 4120-16, METRIC THREAD RING GAGE, GO, M16x2, 6928640341496
$62.82
Measuring/ Inspection Instruments
Insize 4120-2, METRIC THREAD RING GAGE, GO, M2x0.4, 6928640341342
$72.96

Norton 66261014921 - 2" X 1/8" 50 - 80 Grit Coarse Grade Aluminum Oxide Bear-Tex Speed-Lok Rapid Blend Gray TR Non-Woven Unified Wheel, 60 Each
3M 54763, SandBlaster Right Angle Grinder Multi-Layer Disc, 4 1/2 in 36g 9678, 7010384119
Dynabrade 54430 4" Dia. Extended Right Angle Disc Sander, Steel Housing, Rear Exhaust, .7 HP, 12,000 RPM, 3/8"-24 Thread 