Masonry Drill Bits-Spline Drive-(1) 1 1/2" diameter x 24" long $60 & (1) 7/8" diameter x 24" long $30. Fits AEG, B&D, Bosh, Phillps, Milwaukee, & other Hammer Drill machines with a chuck for spline shanks. Never used-good quality. Cash & pick up only. NOTE: Other Sizes Available.