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

Insize 4808, WIRE GAGE, 0-36(.3249~.0050"), 6928640330155
3M 31651, Double Coated Paper Tape 410M, Natural, 2 in x 36 yd, 5 mil, 7000049275
3M 07056, Drywall Sanding Sponge CP-042, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100101555
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 03126, General Purpose Sanding Sponge CP040-6P, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100101532, 6/pack
3M 55722, Stikit Film Disc 375L, 6 x NH P1000 w/Skipslit Liner, 7100075240, 250 per case 