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HSS spiral flute step drill bit
specification
HSS spiral flute step drill bit
Step drill bit is used for drilling cylindrical holes in solid material up to a thickness of 4mm
Step drill bit is ideal for sheet metal workers, electrical contractor, auto mechanice, and general contractors
Burr-free and vibration-free drilling is ensured by step drill bit
Drill bit factory supply step drill bit with competitive price.
Besides branded step drill bit, we also provide OEM service and customised service.
Hole size mm/inch | Stepped by | Step |
4-12 | 1 | 9 |
4-12 | 2 | 5 |
4-20 | 2 | 9 |
4-32 | 2 | 15 |
1/4"-3/4" | 1/16" | 9 |
1/8"-1/2" | 1/32" | 13 |
3/16"-1/2" | 1/16" | 6 |
3/16"-7/8" | 1/16" | 12 |
1/4"-1-3/8" | 1/8" | 10 |