Comprehensive Wood Drill Set: This set includes 15 M2 high-speed steel (HSS) tapered bits in various sizes, equipped with a 1/4 inch hex shank for secure grip and universal compatibility. Ideal for woodworking enthusiasts seeking premium quality. and : Equipped with M2 HSS countersink bits featuring spiral chip flutes for fast cutting. The steel alloy edges smooth countersink and counterbore holes, perfect for screws fitting the 82-degree . Depth : Adjust drill and counterbore depth accurately using the included wrench. The set features a plastics Free collar to minimize marring, enhancing the finish and of your work. Versatile Application: Ideal for natural woods, chipboard, man-made boards, plywood, MDF, decking, drywall, and various plastics. For optimal results and smooth edges, operate the countersink at slow speeds, around 200 RPM., Manufacturer: Ounfhtrttk