Steel and cast steel
HRC 20.6-68.2,HRB 37.0-99.9,HB 81-646,HV 80-950,HS 30.6-96.8
Ball head material
Tungsten carbide
Impact device diameter
20mm
Impact device length
86(147)/75mm
Maximum hardness of workpiece
940HV
Average surface roughness Ra
1.6um
Minimum weight of test piece
0.05kg
Minimum thickness of workpiece
5mm