3/8″ x 3/16″ Carbide Countersink Bit, #9 Screw

Features:
• Use to cut woods and plastics for wood screw heads
• Designed for clean cutting and hardened for long wear
• Can be mounted on ordinary straight twist drills allowing the screw thread to cut its own hole or by using correct pilot drill size for root diameter of thread
• Allowing shank of screw to force its way into the wood
• Countersink is held in place with two hex-socket screws and is easily adjustable up and down the drill so only one countersink and one Length of drill is required for any length of wood screw
• Four flute countersink with 82? angle included

Details