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HSS Step Drill Bits
Features:
- Made of high quality high speed steel and Cobalt steel
- Producing round, smooth holes in a wide variety of material
- Enlarging holes in sheet metals without center punch or pilot bits
- Using bench drill or light drilling machines
- Available flute shape: straight flute, sprial flute, double spiral flute
- Available surface treatment: White; Titanium Coating; TiALN Coating
- Available shank type: round shank, three flatted shank, hex shank
- Specifications can be customized
Metric Sizes | |||
No. of sizes | Hole sizes | Increments | Shank Size |
5 | 4-12 | 2mm | 6mm |
9 | 4-12 | 1mm | 6mm |
9 | 4-20 | 2mm | 8mm |
10 | 4-22 | 2mm | 10mm |
14 | 4-30 | 2mm | 10mm |
15 | 4-32 | 2mm | 13mm |
13 | 5-35 | 2-3mm | 13mm |
7 | 6-18 | 2mm | 10mm |
8 | 6-20 | 2mm | 8mm |
12 | 6-30 | 2-3mm | 10mm |
Fractional Sizes | |||
No. of sizes | Hole sizes | Increments | Shank Size |
13 | 1/8" - 1/2" | 1/32" | 1/4" |
6 | 3/16" - 1/2" | 1/16" | 1/4" |
9 | 1/4" - 3/4" | 1/16" | 3/8" |
12 | 3/16" - 7/8" | 1/16" | 3/8" |
10 | 1/4" - 1 3/8" | 1/8" | 1/2" |