3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101 
Dynabrade 78182 3" Dia. Medium DynaBrite Locking-Type Disc, 25/pack 
Insize ISHW-B92, WEBSTER HARDNESS TESTER, 6928640325472
$3,577.10
Application for soft steel and cold-rolled steel. 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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