Tools & Gear Drills Wood

2674-S1 25-57mm 9 Pce Self Feeding Wood Bit Set Self Feeding Wood Bit Set. The Bordo range of Self Feeding Wood Bits are ideal for drilling large diameter holes in soft woods for plumbing and conduit penetrations and a wide variety of other applications. 7/16" hex shanks to suit drills with 1/2" (or larger) chuck. Precision milled shank which eliminates wobble and runout. Spurs on the outside diameter cut holes cleanly and accurately. Dual inside cutting planes shave hole radius for clean, smooth holes without pressure. Fored in one piece from high carbon steel for maximum strength under the toughest drilling conditions.