... : 4, 5, 6, 7, 11, 12 2.the drill bits Dia.: 15~25mm 3, High quality 2012 New Cheap ... Short Shank Cross Drill BitsCross Bit. Drill BitR32, R32, R 34, R36, R 38, ... , R46, R50, R60, R65, R70New Cheap Short Shank Cross Drill Bits1.The taper angle: 4, 5, 6, 7, 11, ... 122.the drill bits Dia.: 15~25mm3, High quality4, Fast delivery.5, Rock Drill Parts can be offered.