Alpha 9STM4-20 Step Drill 4-20mm
Alpha 9STM4-20 is ideal for non-ferrous metals, sheet steel, plastic & stainless steel up to 3mm thick
Features:
- Self-starting split point removes the need for a pilot hole
- 2 flute design for smooth cutting
- TiN coating reduces heat & increases lubricity for extended life
- Laser etched hole
- Premium HSS M2 raw material for extended life
- 3 flats on shank, prevents slippage in chuck
- Bulk 1-piece convenient plastic pack
Alpha Specifications
- Number of steps: 9 steps
- Step sizes: 4, 6, 8, 10, 12, 14, 16, 18 & 20mm
- 8.0mm shank
- Also available in hangable 1 piece plastic card
Code: C9STM4-20
