This Set from Abracs includes a
4-12mm,
4-20mm
6-30mm Step Drill Bit,
Each with a 4mm depth on each step for accurate holes on a wide range of materials up to 4mm in thickness.
Features:
Designed with a 3 edged shank to eliminate slipping
Dual cutting edge for fast and effective drilling performance
Precision split point ensures a quick start with no pilot holes required
Unique anti-jamming flute gives a smooth and consistent performance
