Hardness scale HRA, HRB, HRC, HRD, HRF, HRG, HR15N, HR30N, HR45N, HR15T, HR30T. HR45T
Preliminary test force 29.4N/3kgf for superficial Rockwell 98N/10kgf for Rockwell.
Display analogue. Stage elevation manual.
Load control manual. Min. reading 0.5HR.
Max. workpiece height 6.30″
Max. workpiece depth 5.51″(from the center of indenter).

3M 01319, Scotch-Brite Cut and Polish Flap Brush, 12 in x 2 in x 5 in 7A MED, 7010299326
3M 14588, Scotch-Brite Roloc+ Cut and Polish Flap Brush, 3 in x 1-3/8 in, A MED, 7100088221 
