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. The MILWAUKEE® 5-Piece SWITCHBLADE™ Bit Plumber's Kit offers a convenient assortment of the MILWAUKEE® SWITCHBLADE™ Selfeed Bits commonly used on the jobsite. MILWAUKEE® SWITCHBLADE™ Selfeed Bits drill up to 12% faster and deliver up to 2X longer life. Designed for any trade that demands repetitive cutting of large holes in wood, SWITCHBLADE™ bits allow you to remove and replace blades rather than resharpen. You get a new bit with every quick, convenient change of the hardened steelblade, and less downtime on the job. An aggressive feed screw design enables the bit to pull through quickly for faster drilling. Built to last and designed to perform, MILWAUKEE® SWITCHBLADE™ Selfeed bits deliver more holes for the money. The kit includes bits in diameters 1-3/8", 1-1/2", 2-1/8", and 2-9/16". Also included are 4 replacement blades, 4 feed screws, 4 set screws, a 5-1/2" QUIK-LOK™ extension and a hex key, all in an impact resistant carrying case.