Features and Benefits:�For Use In Milwaukee One-Piece Carbide Hole Cutters�Features Pilot Spring For Clean Plug Ejection�Designed for Use With All Milwaukee Once-Piece Carbide Cutter Diameters: 3/4" - 4-1/2"�Precision Starts in Hard Metal Materials�Quick Installation and removal using Hex Key�Milwaukee One-Piece Carbide Hole Cutters Provide Up to 10X Life Vs Standard Hole Saws�For Use With Drill/Drivers�Includes Pilot Bit, With Spring�For Use In Stainless Steel, Mild Steel, Copper, Aluminum, and Other Metal MaterialsThe MILWAUKEE Carbide Hole Cutter Pilot Bit 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 in. 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. The solid one-piece design of each hole cutter provides added durability and dependability cut after cut.