Hardness scale: HRA, HRB, HRC, HRD HRF, HRG (with standard indenters); HRE, HRH, HRK (with optional indenter).
Stage elevation manual. Load control automatic. Resolution 0.1HR. Tolearance testing.
Set testing times (2~10) to have average value and the difference of max. and min. value
Convert to other Rockwell scales, HV or HB
Memory of 500 testing values for browsing and output
Testing value can be sent to wireless printer automatically
Calibration function compensates the testing value for high accuracy

Dynabrade 11395 Guide Wheel
3M 27261, Ultra Durable 5 inch Power Sanding Discs, Universal Hole, 320 grit, 7100188480, 10 per pack
Dynabrade 65753 2" x 48" (51 mm x 122 cm) Electric Variable Speed Tool Post Grinder, 3 hp, Wet, 440 V (AC), 3 Phase, 50/60 Hz
3M 26016, PPS Series 2.0 Adapter, Type S9, 16 mm Male, 1.5 mm Thread, 7100135330 