5 Piece, Rock Carbide SDS Plus Hammer Bit Set, Pilot Point Tip Starts On Contact For Greater Accuracy, Durable, Sets Up To 25% More Anchors, Improved Flute Design Pulls Dust Quickly For Faster Drilling, Contains: 3/16" x 4-1/2" x 6-1/2", 1/4" x 2" x 4", 1/4" x 4" x 6", 3/8" x 4" x 6", & 1/2" x 4" x 6".