Blue groove wood power bit 14mm
The blue groove power is the worlds first wood drill bit to use irwins 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 powers extraordinary strength is irwins bi metal technology a composition of tw