WildBossy Countersink Drill Bit Set with Depth Stop 4PCS HCS Four Blades Wood Countersink Bits with Adjustable Depth Stop L Shape Wrench and S2 PH2 Screwdriver Bit for Wood Plastic Woodworking

4Piece Countersink Drill Bit SetIncludes 4 commonly used wood countersink bits with adjustable depth stop collars 1 L shape wrench and 1 S2 PH2 screwdriver bit Designed to drill pilot holes and create countersinks in one step for cleaner flat head screw installation Premium MaterialsConstructed with M2 HSS the pilot drill features a helical chip design for efficient cutting The sharp HCS edges ensure smooth countersinks and counterbores making it ideal for screws conforming to the 82degree imperial US standard Adjustable DepthBoth drilling and countersinking depths can be easily adjusted using hex screws and depth control stops providing enhanced flexibility for various tasks and applications Versatile ApplicationsSuitable for a wide range of materials including natural wood engineered wood MDF particle boards plywood aluminum nonferrous metals and decorative materials this set is perfect for diverse woodworking and drilling projects Usage TipFor optimal performance and clean edges operate the countersinks at a slow speed of approximately 200 RPM.