Step drill bit is a drill bit that has the tip ground down to a different diameter.The transition between this ground diameter and the original diameter is either straight, to form a counter bore, or angled, to form a countersink.
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Step Drill
The CBN ground and spiral flutes guarantee quiet running and high cutting performance.
Especially the chip flow is optimized, so even long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting edges and reduces built-up edges and cold weld
marks. The chamfer on the base of the cone makes withdrawal of the tool from the material
simple when through hole drilling.
| Size | Step Nos | Details |
| 4-12mm | 5 Steps | 4mm,6mm,8mm,10mm,12mm |
| 4-12mm | 9 Steps | 4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm |
| 4-20mm | 9 Steps | 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm |
| 4-22mm | 10 Steps | 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm |
| 4-30mm | 14 Steps | 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm |
| 4-32mm | 15 Steps | 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm |
| 6-38mm | 11 Steps | 6mm,8mm,11mm,14mm,17mm,20mm,23mm,26mm,32mm,35mm,38mm |
| 4-39mm | 13 Steps | 4mm,6mm,9mm,12mm,15mm,18mm,21mm,24mm,27mm,30mm,33mm,36mm,39mm |
| 4-52mm | 13 Steps | 4mm,6mm,12mm,16mm,20mm,24mm,28mm,32mm,36mm,40mm,44mm,48mm,52mm |
| 6-20mm | 11 Steps | 6mm,7mm,8mm,9mm,10mm,11mm,12mm,14mm,16mm,18mm,20mm |
| 6-20mm | 8 Steps | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm |
The CBN ground and spiral flutes guarantee quiet running and high cutting performance.
Especially the chip flow is optimized, so even long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting edges and reduces built-up edges and cold weld
marks. The chamfer on the base of the cone makes withdrawal of the tool from the material
simple when through hole drilling.
| Size | Step Nos | Details |
| 4-12mm | 5 Steps | 4mm,6mm,8mm,10mm,12mm |
| 4-12mm | 9 Steps | 4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm |
| 4-20mm | 9 Steps | 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm |
| 4-22mm | 10 Steps | 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm |
| 4-30mm | 14 Steps | 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm |
| 4-32mm | 15 Steps | 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm |
| 6-38mm | 11 Steps | 6mm,8mm,11mm,14mm,17mm,20mm,23mm,26mm,32mm,35mm,38mm |
| 4-39mm | 13 Steps | 4mm,6mm,9mm,12mm,15mm,18mm,21mm,24mm,27mm,30mm,33mm,36mm,39mm |
| 4-52mm | 13 Steps | 4mm,6mm,12mm,16mm,20mm,24mm,28mm,32mm,36mm,40mm,44mm,48mm,52mm |
| 6-20mm | 11 Steps | 6mm,7mm,8mm,9mm,10mm,11mm,12mm,14mm,16mm,18mm,20mm |
| 6-20mm | 8 Steps | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm |
