Features and Benefits:�Carbide Teeth For Longer Life & Smooth Cuts in Stainless and Other Hard Metals�Stop shoulder Design Prevents Over-Drilling, limiting cuts to 3/16" Depth�3 Flat Secure Grip Shank, Optimized for Drill/Drivers�Spring Loaded Pilot Bit For Fast drilling & Clean Plug Ejection�One-Piece Design For Added Durability�Up to 10X Life Vs Standard Hole Saws�For Use With Drill/Drivers�Includes: 7/8", 1-1/8", 1-3/8" Cutters, Hex Key, and One Additional Pilot Bit�For Use In Stainless Steel, Mild Steel, Copper, Aluminum, and Other Metal MaterialsThe MILWAUKEE One-Piece Carbide Cutter 4-Piece Set features carbide teeth for longer life and smooth cuts in stainless steel and other hard metals. Each cutter features a stop shoulder design that prevents over-drilling and limits cuts to a 3/16" depth, while a 3-flat shank optimizes each cutter drill bit for use in Drill/Drivers. The spring-loaded pilot bit provides complete plug ejection for clean, efficient cutting of each hole. Their solid one-piece design of each hole cutter delivers added durability and dependability cut after cut. This carbide hole cutter kit includes 7/8 in., 1-1/8 in., 1-3/8 in. cutters, and one pilot bit.