Secure hex shank for stable drilling Robust hex shank locks firmly in your drill chuck to prevent slipping or wobbling. Reduces bit spin and improves torque transfer for cleaner, more accurate holes. Adjustable integrated depth stop for consistent results Each bit includes an adjustable depth stop so you can set and repeat precise drilling depths and produce uniform countersink holes. Ideal when multiple fasteners must sit flush or at the same depth. Durable carbide construction Precision carbide material delivers high hardness and excellent wear resistance. Maintains cutting performance through extended woodworking and installation tasks. Versatile four-piece set Includes 8.0 mm, 4.0 mm, 3.6 mm, and 3.2 mm bits to cover a range of screw sizes and applications, helping you consolidate tools and work faster. Why you need this set Eliminates slipping and wobble to reduce material damage and rework. Ensures repeatable hole depth for a professional, consistent finish. Carbide durability saves money over time by extending bit life. Typical applications Cabinet and furniture assembly: set consistent countersink depths for hidden screws and clean hardware installation. Decking and exterior projects: maintain steady torque and depth control for long runs of fasteners. General woodworking and repairs: rapid, repeatable pilot holes and countersinks for different screw sizes. What’s included Four carbide bits with integrated adjustable depth stops: 8.0 mm, 4.0 mm, 3.6 mm, 3.2 mm. Compatible use Designed for use with drills that accept hex shank bits; provides reliable grip and torque transfer for portable drills and drivers. Materials and performance Carbide construction for sustained hardness and wear resistance, delivering consistent cutting performance across many projects.