1:D31 D41 D53 D60 D65 D85 D155 D355 bit end cuttng edge

2: 45# . 80# ,30MNB  material

3: HARDNESS: 42-55HRC

4:parts no. 

101-71-12370, 104-72-21140, 104-Z40-1160, 112-70-31110, 11G-71-21170, 12F-70-11640,12F-70-31521, 12F-70-31261, 12F-70-31281,12F-B74-3171, 130-70-41130, 130-70-51130, 130-70-61170, 130-842-5120, 130-920-2180, 130-Z20-1510, 130-Z20-1610, 13F-Z27-1510,13G-71-61410, 140-70-11121, 144-70-11131, 144-871-5130, 144-920-1120, 14X-71-11310, 14X-952-1130, 14Y-71-11210, 150-70-21311, 150-70-21312, 150-70-21314, 154-70-11313, 154-70-11314, 154-70-16591, 154-72-11121, 154-72-11122, 154-72-11151, 154-81-11191, 175-70-21114, 175-70-21115, 175-70-26310, 175-71-11242, 175-72-21123, 175-901-1130,17A-71-11351, 17M-71-21160, 17M-71-21550, 195-70-12492, 195-71-11653, 195-71-11654, 195-71-61550, 195-72-11143, 195-72-11144, 195-72-11153, 198-71-11181, 198-71-31540, 198-71-31550, 198-72-11181, 112-70-31120/30, 112-817-11102, 120-Y46-5162/72, 124-70-21330/40,12F-929-21702,13F-Z27-1581/71,13F-Z27-1582/72, 140-70-11130/40, 140-70-11131/41, 140-70-11170/80, 144-70-11180/90, 144-70-11250/60, 144-70-11251/61, 144-952-1120/30, 150-70-21343/53, 150-70-21344/54, 150-70-21345/55, 150-70-21356/46, 154-926-1120/30, 175-70-21123/33, 175-70-21125/35, 175-70-21126/36, 175-71-11170/80, 175-71-11172/82, 175-71-22271/81, 175-71-22272/82, 175-72-22241/51, 17M-71-21930/40, 195-70-12610/20, 195-71-11173/83, 195-71-21350/60, 195-71-61930/40, 198-71-31250/60