Vtizikl 8mm Shank HSS Countersink Drill Bit Set with Stop Collars Woodworking Countersink Bit Hole Puncher Tools 5PCS

8mm shank screw extractor is suitable for bench drill, hand drill and conventional electric drill Woodworking countersink set comes with 5pcs drill bits set, comes in different size, enough to meet your needs Practical design countersink drill can quickly and accurately drill a smooth hole Countersink drill is made of industry grade premium high speed steel, high hardness, good wear resistance and durability Woodworking countersink is perfect for drilling holes in alloy steel, wood, nonferrous metal, cast iron and hard plastic