Powdered metal substrate offers superior performance that approaches that of solid carbide tools but with the toughness and shock-resistance of high-speed steel Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools Right-hand cut tools have a cutting action that engages when they are run in a clockwise direction Round with square end shank, spiral point Through hole Item Weight 0.001 ounces Manufacturer Precision Dormer Item model number 0138380 Product Dimensions 0.37 x 0.04 x 0.35 inches