The set includes tapered drill bits made from wear resistant carbon steel, depth rings for quick settings, and comes organized in a protective hard case with individual slots Achieve flawlessly woodworking results with this carbon steel countersink drill bit set featuring an adjustable depth stop that prevents accidental surfaces damage and ensures precise 3.2–4.8mm holes every time Enhances your workshop efficiency with this durability, portable set that combines professional construction with user friendly features like rapid bit changes and secure component storage Perfect for creating clean, controlled countersinks in delicate wood surfaces during cabinet making, door hinge installations, or any project demanding accurate depth drilling without surfaces scratches Ideal for both enthusiasts tackling home renovations and professional woodworkers requiring reliability precise tool for furniture assembly or appliance installations, Manufacturer: Greabuy