Description The MILWAUKEE Flat Boring Bits are the ideal solution for boring holes at any angle in a variety of materials. The premium quality spade drill bit is made of heat-treated high carbon steel. The pilot drill point and cutting edge of the paddle bit are designed to be resharpened, saving time while extending the life of the bit. The 13 piece flat spade bit set bores clean, fast holes at any angle in wood, plastic, plywood and Formica.