Features √Product Specification: 8x8x2.8 Cm, This Drill Bit Can Create Perfect Countersunk Holes for Grub Screws And Plug Screws, No Need to Split Wood, Not Easy to Clog √Easy to Operate: Equipped with Hexagon Wrench, Flat Wrench And Screws, This Countersunk Bit Is Easy to Operate And Greatly Improves Work Efficiency √High Hardness: The Countersink Drill Bit Is Made of Carbide Steel with A Hardness of Hrc50-54, Which Has Good Drilling Ability And Wear Resistance √Adjustable Depth: The Depth f Screws of Different Lengths Can Be Adjusted, Countersunk Holes Are Made on The Wood to Ensure Consistent Depth √Package Specification: 1 X Countersunk Drill Bit 1 X Hex Wrench 1 Wrench 1 Screw 1 X Storage Jar Please Avoid Cutting Ferrous Metals And Other Materials Such As Steel, Iron, Sand, Etc. Specification: Item Type: Countersink Bit Material: Alloy Steel Specification: 8x8x2.8 Package List: 1 x Countersunk Bit 1 x Hex Wrench 1 x Wrench 1 x Screw 1 x Storage Cylinder Note: Please avoid cutting black metal and other materials such as steel, iron, sand, etc. Package List 1 x Countersunk Bit 1 x Hex Wrench 1 x Wrench 1 x Screw 1 x Storage Cylinder