Resolution .00005″/0.001mm.
Measure the diameter of parts or cutting tools with odd grooves, such as tapes, reamers and end mills.
IP65 dust/waterproof. Button function: on/off, set, inch/mm, ABS/INC.
Data output. LR44 battery, automatic power off.
Ratchet stop.
Carbide measuring faces.
Supplied with setting standards.

Insize 2197, LARGE RANGE DIGITAL RADIUS GAGE, R1(4-590"/100-1500mm), R2(4-590"/100-1500mm), 697409778087
Dynabrade 94991 1/4" Female Composite-Style Coupler with 1/4" Female Plug Assembly
Standard Abrasives 713286, Mandrel, 1/4 in x 1/4 in x 2 in DM-7, 7000121806 