General description 17pcs SDS Plus Rotary Hammer Drill and Chisel Metric Bit Set designed for drilling holes in concrete, brick, stone, and other hard materials using SDS and SDS Plus drills. This comprehensive set includes various drill bits and chisels to meet your drilling needs. Technical specifications 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" and 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" Compatibility and accessories Includes 12 Drill Bits 3 Flat Chisels 2 Bull Points 1 Carry Box Installation Professional installation is highly recommended. No instruction manual is included.