For fast, small hole drilling in wood, count on Milwaukee's premium quality 1-3/8 in. flat boring bit. Made of heat treated high carbon steel, the flat boring bit bores clean holes at any angle in wood, plastic, plywood and Formica. The drill point and cutting edges can be resharpened often for ecoNmical hole drilling. Bit offers a 6 in. drilling depth but can be used with 12 in. extension, 48-28-3350, for extended deep hole drilling. One per package.