1,hardness:63-66hrc 2,grade:G10/G16/G20/G24/G28/G40/G60/G100/G200 ... (μm)Ra(μm)101/16”~1”0.250.250.500.025281/16”~1”0.70.71.400.050401/16”~1” ... 2003001/16”~1”7.627.6215.20-5001/16”~1”12.7012.7025.40-10001/16”~1”25.4025.4050. ... )101/16”~1”1-10,…..,-1,0,+1,…..,+9281/16”~1”2.00-12,…..,-2,0,+2,…..,+12401/16”~1”4.00 ... -16,…..,-4,0,+4,…..,+16601/16”~1”5 ...