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 61136 Carriage Handle
Dynabrade 66370 Filter, Regulator, Lubricator and Manifold
Dynabrade 79942 5" Dia. x 120 Grit Non-Vacuum Hook-Face DynaCut Disc, 100/Box
Dynabrade 78143 6" Dia. x 1/2" Center Hole, Extra Coarse, DynaStrip Disc
Dynabrade 93650 5" Dia. x 3/4" CH 40/50 Grit Side Spoked Diamond Cut-Off Wheel
Dynabrade 96620 Motor Tune-Up Kit
Dynabrade 78689 D8 Cartridge Roll Mandrel 1/8" Pilot Dia. x 3/4" Pilot Length, 1/4" Shank Dia. x 1-1/4" Shank Length
Dynabrade 13301 Mini-Dynisher Finishing Tool, .4 HP, Rear Exhaust, 950 RPM, 5/8" Arbor
Dynabrade 53417 Right Angle Mini-Dynorbital Random Orbital Sander
Dynabrade 48370 .4 hp Straight-Line Die Grinder, Rear Exhaust, 25,000 RPM, 1/8" Collet
Dynabrade 50771 Shroud-3"
Dynabrade Dynacut 94021, 10-piece, Alloy Specific Burr Kit (for Nickel & Titanium), 1/8" Shank
Dynabrade 58415 5" Dia. Non-Vacuum Two-Hand Dynorbital Random Orbital Sander
Dynabrade 51232 2" Dia. Right Angle Disc Sander, Central Vacuum, 20,000 RPM
Dynabrade 90716 5" Dia. x 1" W, 60 Grit, Z/A DynaCut Band, 10/pack
Dynabrade 01111 Drive Wheel
Dynabrade 01025 O-Ring
Dynabrade 79184 1/4" W x 12" L 120 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 56197 6" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 56183 6" Dia. Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 78664 1/2" Dia. x 1-1/2" W x 1/8" Center Hole, Tapered Cartridge Rolls, A/O, 80 Grit, 100/pack
Dynabrade 52293 .7 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 18,000 RPM, 1/4" Collet
Dynabrade 11201 Contact Arm Ass'y, 5/16" Dia. x 3/8" W, Steel Wheel, with 1/2" W Platen
Dynabrade 93532 7" Mandrel for Sanding Stars w/ Flexible Tip, 8-32 Male Thread
Dynabrade 78324 2" Dia. x 1" W x 1/4" Shank, 180 Grit, A/O DynaCut Flap Wheel, 10/pack
Dynabrade 13515 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 5/8"-11 Arbor
Dynabrade 59462 Dynorbital-Spirit Drop-In Motors (10 Pack) with Repair Tools Included 