Standard Abrasives 42651, A/O Flap Wheel 624105, 2-1/2 in x 1/2 in x 1/4-20 in 60, 7010369116, 10 per case 
Insize ISHR-B141, MAGNETIC BRINELL/ROCKWELL HARDNESS TESTER, 6928640325397
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Rockwell scale: HRA, HRB, HRC, HRD, HRF, HRG. Brinell measuring range 20~650HBW.
Rockwell test force: 10kg preload, 60kg, 100kg, 150kg total load.
Brinell test force: 62.5kg, 125kg, 187.5kg. Min. Rockwell reading 1HR.
Measuring microscope: 40X, graduation 0.01mm/.0004″.
Apply to large steel or iron workpieces.
According to ISO6508, ASTM E18.
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