SWITCHBLADE? Replacement Feed Screw Kit. Extend the life of your Milwaukee? SWITCHBLADE? Selfeed Drill Bits with the Replacement Feed Screw Kit. The aggressive feed screw thread design allows the bit to be pulled through the wood faster, resulting in faster drilling.The kit includes 5 feed screws, 3 set screws and a hex key for quick change outs on Milwaukee SWITCHBLADE? Selfeed Drill Bits up to 2-9/16″. The kit’s resilient carrying case can also store extra SWITCHBLADE? replacement blades. Use only Milwaukee specified replacement parts to achieve maximum life and performance from your Milwaukee tool.