Hole Opener Bi-Metal Gypsum Board Plastic Iron Plate Metal Woodworking Drill Bit Reamer Safe and Durable

Features: 1.It has a tooth shape low vibration and can be quickly balanced when opening a hole which makes the operation more stable. 2.Chip hole: All specifications are equipped with special hole for chip removal which improves the speed of removing cylindrical iron chips in the hole. 3.Center hole: The center hole in the hole opener has high strength strong toughness and durability. 4.Universal handle type: Effectively prevent work slippage and the handle can carry greater torque. 5.Product use: suitable for pistol drills bench drills vertical drills etc. It is widely used in openings such as board holes household wood galvanized pipes fire hoses plastics and gypsum boards.