Extend the life of your Milwaukee Selfeed Drill Bits with the Feed and Set Screw Accessory Set. The aggressive feed screw thread design allows the bit to be pulled through the wood faster， resulting in faster drilling. The set includes 5 feed screws， 3 set screws and a hex key for quick change outs on Milwaukee Selfeed Drill Bits up to 2-9/16 inch. Use only Milwaukee specified replacement parts to achieve maximum life and performance from your Milwaukee tool.