5Pcs Countersink Drill Bit Set, Wood Countersink Drill Bit, with Adjustable Hex Key Wood Countersink Drill Bit Set(2.8/3/3.2/3.5/4mm), HSS Countersink Drill Bit for Woodworking

General description This Countersink Drill Bit Set includes 5 pieces of drill bits in various sizes (2.8/3/3.2/3.5/4mm), designed for woodworking projects. The set is perfect for DIY enthusiasts and professionals alike, allowing for precise countersinking of screws to create a flush finish. Technical specifications Sizes: 2.8mm, 3mm, 3.2mm, 3.5mm, 4mm Material: HSS (High-Speed Steel) and tungsten steel Drill body material: 45# steel substrate Shank type: 8mm round shank Standard milling angle: 90° Compatibility and accessories Compatible with most models of lithium electric drills, hand electric drills, and bench drills Includes an adjustable hex key for length adjustment Comes with a convenient storage and carrying box Usage Ideal for drilling clean and precise holes in hardwood, plywood, compressed panels, plastic, MDF, pine, and beech Utilizes a center drill for spiral flute to efficiently discharge chips and prevent debris accumulation Designed to finish punching holes in one go, saving time and labor