China 2021 HSS Drill Bits Customized Factory Wood Taper Point Drill Bits Cutting Tool, Find details about China Drill, Drills from 2021 HSS Drill Bits Customized Factory Wood Taper Point Drill Bits Cutting Tool
HSS STEP DRILLS WITH 3 CUTTING EDGES |
1, PROCESS:MILLED ROLLED,FULLY-GROUND |
2,MATERIALS:HSS OR HSS-COBALT |
3,APPLICATION MATERIAL:STEEL,CASTIRON OR OTHER SOFT METAL |
4,SURFACE TREATMENT:WHITE,BLACK,TIN-COATED |
5,SIZE:0.2-30.0mm |
stub drill:DIN1897 |
normal drill:DIN338 |
long drill:DIN340,longer drill:DIN1869 |