Hardness scale: HRA, HRB, HRC, HRD HRF, HRG (with standard indenters); HRE, HRH, HRK, HRL, HRM, HRP, HRR, HRS, HRV (with optional indenter).
Automatic testing, the preliminary and main test force are loaded automatically
LCD touch screen, easy operation
Convert to other Rockwell scales, HV or HB automatically
Low and high limits. Insert USB flash disk, save the testing results as Excel.
Self-correcting the hardness value for curved workpiece.
Force loading by electric motor (without weights)

Dynabrade 77761 4-1/2" Dia. x 7/8" Center Hole, 36 Grit, Type 27, Ceramic DynaCut Flap Disc, 10/pack
Air Turbine Tools 2590SVF - 6mm Angle Hand Tool Series (Long Version, Front Exhaust), 40,000RPM, 35843
Insize 6300, MICROMETER STAND, 6928640307294
3M 65491, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH5220TRI-10I, 5 inch UH, 220, 7100202878, 10 per pack 