Makita D-30031 2-9/16 inch self feed bit. Quality materials used during the manaufacturing process for longer life.
2-Inch-9/16 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