Double flute straight drill bit Cuts smoother than other bits because of the precise shear and hook angles End of bit relief allows for fast lunging Cuts all composite materials, plywoods, hardwoods and softwoods Use on CNC and other automatic routers as well as hand held and table mounted portable routers 3/8-in overall diameter 1-1/4-in Carbide height 1/4-in shank diameter 2-11/16-in overall length Carded