Feature●Used by plumbers, electricians and other tradesmen for boring holes in pipe, conduit, wood●Outlining spurs accurately define hole diameter●Threaded screw point pulls the bit into the work●Heavy duty half inch shanks have 3 milled flats for separate grippingDescription
From the Manufacturer
3-Inch Self Beading Bit, Used by plumbers, electricians and other tradesmen for boring holes for pipe and conduit in wood, the heavy duty 1/2-Inch shank shave milled flats for secure gripping by the drill chuck