3M 05022 Scotch-Brite Surface Conditioning Belt, 2-3/4 in x 15-1/2 in, A CRS, 7000120574 
3M 28713 ROLOC DISC PAD TR, HARD 4 IN 5/8-11 INTERNAL, 7010298961 
3M 02140, Fibre Disc Backup Pad, TN Quick Change , 4-1/2 in x 5/8-11 Internal, 7000045746 
Insize ISHW-L20B, WEBSTER HARDNESS TESTER, 6928640325441
$4,298.14
Application for aluminum alloy small tube. Hardness range 0 ~ 20HW. Min. reading 1HW.
Accuracy ?0.5HW (at 5 ~ 17HW).
To measure the hardness of soft metal such as aluminum alloy, copper, brass, soft steel, etc.
According to ASTM B647-84 (2000).
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