3M 19795, Utility Cloth Roll 314D, P400 J-weight, 1-1/2 in x 20 yd, 7100081717 
Insize ISHW-L20, WEBSTER HARDNESS TESTER, 6928640325427
$3,174.36
Application for aluminum alloy general use. 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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