IRW10507764 BLUE GROOVE POWER BIT SET (20, 22, 25MM)

20mm, 22mm and 25mm 3x Blue Groove Power Bit Set. Blue Groove is the world's first wood drill bit to use IRWIN's pioneering bi-metal technology, creating a drill bit with unrivalled speed and durability even in nail-embedded wood. Designed for high-speed precision drilling, it marks an end to the frustration that tradesmen experience when their drill bits strike a nail, frequently causing standard flat bits to become locked or break. The secret behind Blue Groove Power's extraordinary strength is IRWIN's bi-metal technology, a composition of two high performance components, high speed steel and carbon steel, which both have their own attributes and benefits. The high-speed steel edge provides durability and allows nail cutting, while the carbon steel body gives the bit flexibility. Each bit in the Blue Groove Power range has a self-feeding tip which helps to pull it through materials, as well as three cutting edges which enhance chip removal for a fast, clean hole.