Bosch Countersink Drill Bit, 4 Pieces Hex Shank HSS Bits Set Screw Reaming #6#10#13#16 Bit for Woodworking Tool

Versatile Drill Sizes: This set includes 4 high-speed steel (HSS) drill bits designed to drill holes for screw sizes #6, #8, #10, and #12, making it perfect for various woodworking projects. Dual Functionality: Featuring a special steel counter sleeve, these bits can both drill and countersink holes for wood screws without the need to change bits, saving you time and effort. Adjustable Depth Control: The counter sleeve depth is easily adjustable with a hex wrench, allowing you to customize your drilling depth to suit different screw lengths. Standard Hex Shank Compatibility: With a 6.35mm (1/4 inch) standard hex shank, these drill bits are fast change compatible, ensuring quick and easy transitions between bits. Sturdy & Efficient: Suitable for drilling workpieces with hardness below 25HRC (such as carbon steel, sheet iron, PVC plate, and wood), these bits are crafted from high-quality HSS for enhanced durability and performance.