"DISSTON COMPANY" HIGH SPEED STEEL DRILL BIT * Master mechanic * 1/2" x 4", m50, high speed steel drill bit * 118 point, bright silver finish * Jobber length * 1/4" reduced shankFeatures * 2 cutting edges & polished flutes * Recommended for drilling wood, plastic, wallboard, plywood * For moderate use in soft metals, brass, bronze, sheet metal & aluminum * Carded.