Step Drill Bit 6-18mm (7 Holes)

<p>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 with a self centring point that will not walk and eliminates centre punching.</p> <p>Made from industrial grade M7 high-speed steel.</p><p>Irwin Step Drill Bit.</p> <p>Number of hole sizes: 7.<br />Hole diameters: 6, 8, 10, 12, 14, 16 and 18mm.</p>