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IRWIN 10502850 1M 9 Hole sizes Step Drill Bit (4mm - 12mm), 1mm increments
IRWIN 10502850 1M 9 Hole sizes Step Drill Bit (4mm - 12mm), 1mm increments
Designed for precise drilling in thin materials.
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- Self-centering point will not walk and eliminates the need for center punching.
- Chrome-vanadium steel drill bit body is hardened to 56 HRC for durability.
- Double-ground single-flute cutting edge for extra chip capacity, drilling of true, round holes and provides maximum step control.
- Ideal for drilling holes in thin materials including mild steel, copper, brass, aluminum, Plexiglas, plastic, wood, and laminates.
- Flatted shank prevents the drill bit from slipping in the chuck.
- Laser-etched sizes inside flute for easy and permanent hole size identification.
| Number Of Hole Sizes | 9 (1mm Increments) |
| Hole Diameters | 4, 5, 6, 7, 8, 9, 10, 11 & 12mm |
