Features: Experience precisions and durability with our Hex Shank Adjustable Countersink Drill Bit, featuring a high hardness alloy head that resists wear and maintains sharpness for accurate wood drilling. Designed with adjustable depth and a step drill design, this tool allows you to customize hole sizes for various screw specifications, enhancing both efficiency and versatility. Ideal for DIY enthusiasts and professional craftsmen alike, this drill bit caters to anyone seeking reliable and precise woodworking tool. Perfect for home improvement projects, furniture assembly, or any woodworking task requiring clean and precise holes, ensuring screws sit flush or countersunk as needed. The hex shank ensures a secure fit with power tool, providing stable torqued transmission and preventing slippage, while the efficient chip removal design keep your workspaces clean and extends tool life. Specifications: Component: 45# Steel, YG6X Dock Steel Alloy Color: As pictures shown. Size: As pictures shown. Optional Specification: 2.8x8mm, 3.0x8mm, 3.2x8mm, 3.5x8mm, 4.0x8mm, 2.8x10mm, 3.0x10mm, 3.2x10mm, 3.5x10mm, 4x10mm Quantity: 1 set Package Includes: 1 set Countersink Drill Bit note: Please allow 1-3cm error due to manual measurement. please sure you not mind before you bid. Due to difference between different monitors, the picture may not reflect the actual color of the item.