Countersink Drill Bit set Benefits - Provides precise countersinks for wood screws to sit flush with the surface - Built in 90 degree center punch function helps start holes accurately and reduces wandering - 1/4 in hex shank for easy handling and compatibility with many drills and drivers - Made from high speed steel for durability and sharpness, with a coated finish for longer life - Includes six commonly used sizes to cover a range of woodworking tasks What it is - A versatile countersink bit set designed for woodworking projects - Durable high speed steel construction with a coating to extend performance and life Sizes included - 6 mm, 8 mm, 9 mm, 12 mm, 16 mm, 19 mm Material and finish - Material: High speed steel - Finish: Coated Design features - 1/4 in hex shank for easy handling - 90 degree center punch function to start holes accurately Use scenarios - Cabinet and furniture installation: countersink screw holes for a clean, flush finish on doors, panels, and frames - General woodworking: predrill and countersink for screws in softwood or hardwood projects - DIY repairs and enhancements: quickly create accurate starting points and countersinks for maintenance or upgrades Compatibility and handling - 1/4 in hex shank enables straightforward use with most drill chucks and drivers - Six sizes provide versatility for common screw diameters and wood projects Care and maintenance - Keep bits clean and dry after use - Wipe with a dry cloth; apply light oil if stored for an extended period to prevent rust on uncoated surfaces Note - This set includes sizes 6 mm, 8 mm, 9 mm, 12 mm, 16 mm, and 19 mm, all with a 1/4 in hex shank and a 90 degree center punch function, finished with a protective coating for durability in woodworking projects