ACS Type 1, 4-1/2" X .250" X 5/8-11 Type 1 (Flat) 30 Grit, (*Eco-Dust/Debris Reduction) 
Insize HDT-PB350, HAMMER IMPACT BRINELL HARDNESS TESTER, 6940561966657
$1,703.33
Measuring range 100~350HBW (with .29″ DIA indenter, included), 350~650HBW (with .16″ DIA indenter, optional)
Test force 1580kgs
Accuracy ?5%HBW
Repeatability ?5%HBW
Measure Brinell hardness of large and heavy workpieces
1580kg test force and .29″ DIA ball indenter, equal to 3000kgs test force and .39″ DIA ball indenter
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