Measure radius of external arc, arc angle of measured surface should be larger than 90?
Resolution .0005″/0.01mm
Buttons: on/off, set, inch/mm, preset (+, -)
Automatic power off, move the digital unit to turn on power
Battery CR2032, Data outputMade of stainless steel
Supplied with pin gage for zero setting

Dynabrade 91162 3/8" W x 13" L 60 Grit A/O DynaCut Belt, 50/pack
Insize 0131-A120, LIGHT METER, 0.01~19.99FC, 0.1~199.9FC, 1~1999FC, 10~19990FC, 0.1~199.9Lux, 1~1999Lux, 10~19990Lux, 100~199900Lux, 6974029776557
Standard Abrasives 712149, Aluminum Oxide Handy Roll, P100 J-weight, 1-1/2 in x 50 yd, 7010295370
Dynabrade 78579 1/4" Dia. x 1" W x 1/8" Center Hole, 60 Grit, 100/pack
3M 26135, PPS Series 2.0 Adapter, Type S40, Trapezoidal Thread, 7100135335
Standard Abrasives 710870, Cartridge Roll Mandrel, 1/8 in x 1/2 in x 1/4 in x 1-1/4 in x 2-1/4 in CM-7, 7000121794
3M 17364, High Capacity Battery TR-332, for Versaflo TR-300 PAPR, 7000052903, 1 EA/Case
3M 05035, Cloth Belt 384F, 60+ XF-weight, 1/4 in x 24 in, Fabri-lok, 7100141440, 200 per case
3M 86804, Cubitron II Stikit Film Disc 775L, 80+, 6 in x NH, Linered w/Tab, Die 600Z, 7100045866, 250 per case
3M 26141, PPS Series 2.0 Adapter, Type S44, 3/8 Female, 19 Thread BSP, 7100158892
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 15145 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Medium, 1 in x 132 in, 7010364529
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956 