Bosch HCK001 7-Piece SDS-plus Rotary Hammer Drill Bit Set
Set contains 1 each (HC2010)3/16-inch diameter by 2-inch useable by 4-inch overall;1 each (HC2040)1/4-inch diameter by 2-inch useable by 4-inch overall;1 each (HC2051)5/16-inch diameter by 4-inch useable by 6-inch overall;1 each (HC2081)1/2-inch diameter by 4-inch useable by 6-inch overall; and 2 each (HC2041)1/4-inch diameter by 4-inch useable by 6-inch overall tough, C4 carbide bits with patented 4 flute design for long life and great precision.