3M 45099, Roloc Disc Pad TR, Medium 1-1/2 in 1/4-20 Internal, 7000045280 
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168 
Insize ISHW-L20A, WEBSTER HARDNESS TESTER, 6928640325434
$4,298.14
Application for aluminum alloy thick workpiece. 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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