Alpha 4 Flute Spiral Quick Release Step Drill 4-20mm

Drills & deburrs in one process
Ideal for: Non-ferrous metals, sheet steel, plastic & stainless steel up to 3mm thick
Suits: Non-hammer action portable power drills 

Self-starting split point removes the need for a pilot hole

4 flute spiral design cuts faster with less vibration for fast, clean & accurate holes

TiN coating reduces heat & increases lubricity for extended life 

Laser etched hole

Premium HSS M2 raw material for extended life 

Non-slip 1/4 inch quick change shank 

Hangable 1 piece plastic card 

Technical information: 

Number of steps: 9 steps

Step sizes: 4, 6, 8, 10, 12, 14, 16, 18 & 20mm  

1/4 inch shank