Rotary Hammer Drill, SDS Plus, 1/4 in, Carbide Head, 6 in Overall Length, Maximum Drilling Depth 4 in, Shank Diameter 13/32 in, Bright (Uncoated) This full head carbide SDS Plus(R) bit is engineered for drilling in hard concrete with rebar. It is ideal for precision anchoring applications. It offers long service life, and is optimized for heavy-duty roatary hammers. When the bit makes contact with rebar, it helps to prevent jamming.