IRWIN 10502850 Step Drill Bit 9 Hole sizes; 4-12mm
- Designed for precise drilling in thin materials.
- Unique flute design ensures perfect round holes
- The Irwin Step Drill Bits are designed for precise drilling in thin materials and have a single flute for maximum drilling control into sheet metal.
- Their unique flute design ensures perfect round holes in sheet metal.
- A fluted shank also prevents the drill bit from slipping in the chuck; along witha self centering point that will not walk and eliminates centre punching.
- Made from industrial grade M7 high-speed steel.
- Number of hole sizes: 9
Hole diameters: 4; 5; 6; 7; 8; 9; 10; 11 and 12mm
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