High quality 1/2" hardened steel shanks with sharp TCT cutting edges. Twin cutting edge for smooth finish. Straight bits 12.7x6mm, 12.7x12mm, 12.7x16 mm; V-Groove Bit 12.7x12.7mm; Dovetail Bit 12.7x12.7mm; Chamfer Bit 12.7x32mm; Bearing Flush Trim Bit 12.7x12mm; Rounding Over Bits 12.7xR6.3mm and R9.5mm; Rounding Box Bit 12.7xR6.3mm; Cove Box Bit 12.7xR6.3mm; Roman Ogee Bit 12.7xR4