Features and Benefits:�Faster, more accurate drilling: Aggressive feed screw design allows the bit to pull through fast�Versatile: For Selfeed bits 3" to 4-5/8"Extend the life of your Milwaukee Selfeed drill bits with the feed and set screw kit. The aggressive feed screw thread design allows the bit to be pulled through the wood faster, resulting in faster drilling. The kit includes3 feed screws, 2 set screws and a hex key for quick change outs on Milwaukee Selfeed drill bits sized 3 in. to 4-5/8 in. Use only Milwaukee specified replacement parts to achieve maximum life and performance from your Milwaukee Tool.