Milwaukee 48-25-5140 2-1/8-Inch Switchblade Selfeed Bit,Milwaukee,48-25-5140" /> Aggressive feed screw design allows the bit to pull through the wood faster, resulting in faster drilling Replacement blades made with hardened steel increases bit life Size and model number engraved on each bit Aggressive feed screw design allows the bit to to pull through the wood faster, resulting in faster drilling Replacement blades made with hardened steel increases bit life Size and model number engraved on each bit Milwaukee 48-25-5140 2-1/8in Switchblade Selfeed Bits come with: 2-1/8in Switchblade Selfeed Bit, 2 replaceable blades, 2 Feed Screws, 2 Set Screws, and One (1) Hex Wrench