Application: To drill holes on concrete, brick, stone and other hard materials for SDS drill, for SDS Plus drills Package Including: 12x Drill Bits 3x Flat Chisels 2x Bull Point 1x Carry Box Drill Bits Diameter: 3/16" x 110mm 1/4" x 110mm 5/16" x 110mm 3/8" x 110mm 1/4" x 160mm 5/16" x 160mm 3/8" x 160mm 1/2" x 160mm 5/16" x 210mm 3/8" x 210mm 1/2" x 260mm 9/16" x 260mm Bull Point: 5-1/2" 10" Point Chisel: 9/16" x 9 13/16"(14x250mm) Flat Chisel: 3/4" x 5-1/2" 3/4" x 10" 1-5/8" x 10 Notice: * Professional installation is highly recommended (No Instruction Included) * For any needs please contact us