3 sixteenths inch by 2 inch by 6 inch S D S Hammer bit with quarter inch hex.

DW5363 3/16" x 3" x 6" SDS Hammer Bit with 1/4" Hex

Featuring an innovative carbide tip for long bit life and a debris-cleaning U-flute, DEWALT SDS Plus 1/4" Hex Shank Masonry Drill Bits enable quick, efficient drilling. A hex shank interlocks with drive sleeves, enabling users to easily switch between drilling and driving.