Grizzly T10277 6 Piece Hardness Tester File Set
Test hardness the easy way with this Hardness Tester File Set. Simply run the files over your test sample and, if a file scratches the sample, you know the sample hardness is less than the hardness marked on that file. Files range from HRC 40 to HRC 65 in HRC 5 degree increments. Each file is color coded and comes in a sturdy folding case.
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