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 94407 1/4" NPT Composite-Style Flow Control Dynaswivel
Dynabrade 52202 .4 hp Straight-Line Die Grinder, Front Exhaust, 30,000 RPM, 1/4" Collet
Dynabrade 13512 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 1/2" (13 mm) Dia. Arbor
Dynabrade 51847 1/4" Drill Right Angle, .4 HP, Front Exhaust, 15,000 RPM
Dynabrade 55422 Housing Assembly for 52856, 60,000 RPM
Dynabrade 53532 Cone or Plug Grinder (Double Extension), 18,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 64903 Variable Speed Versatility Grinder, 3 hp, 460 V (AC), 3 Phase, 50/60 Hz, 2,000-8,000 SFPM, 1/4"-2" W x 72" L (6-51 mm x 122 cm) Belts
Dynabrade 64635 Raptor Vac Air Powered Portable Vacuum System Conductive Hoses, 10 Gallon
Dynabrade 12204 Stockade Reciprocating Sander, .4 HP, 2,400 SPM
Dynabrade 13523 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 4,500 RPM, 5/8"-11 Arbor
Dynabrade 51330 .7 hp Router, Front Exhaust, 20,000 RPM, 3/8"-24 Spindle
Dynabrade 82442 6" Dia. x 60 Grit A/O Hook Non-Vacuum Film-Backed DynaCut Disc, 100/Box
Dynabrade 02050 Drop-In Motor
Dynabrade 10040 Raptor Vac Pack Mobile Auto Vacuum System, 20 Gal. 120 V
Dynabrade 61401 Raptor Vac Electric Portable Vacuum System, 20 Gal. 120 V
Dynabrade 51411 7 Degree Offset Mini-Dynorbital Random Orbital Sander
Dynabrade 11004 Dynafile Screw-In Housing
Dynabrade 58441 5" Dia. Two-Hand Gear-Driven Sander, Non-Vacuum, .45 HP, 900 RPM, Hook-Face Pad
Dynabrade 58420 6" Dia. Two-Hand Dynorbital Random Orbital Sander, Central Vacuum
Dynabrade 18426 Vane Set (4pk)
Dynabrade 95745 1/4" NPT Speed Regulator
Dynabrade 58506 3-7/8" W x 5-5/8" L Dynabug II Orbital Sander, Central Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade 11682 Dynabelter Contact Arm Assembly, 4 Inch Dia x 1/2 Inch, 70 Durometer, Wheel Radiused
Dynabrade 13200 Dynastraight Finishing Tool, .7 HP, Rear Exhaust, 950 RPM 