Dottie Regular spade drill bit is perfect for boring hardwoods, softwood, plywood and drywall. Bit features premium cold forged steel construction. It has a dimension of 7/8-Inch Dia x 6-Inch. This bit has precision ground hexagonal shank and wing tip point for reliable operation. It has a machine finished cutting groove for removing chaff out of the hole quickly. Drill bit is completely heat-treated and cold forged for increased rust protection.