Depth Precision: Adjust drill and counterbore depth accurately using the included wrench. The set features a plastics Free collar to minimize marring, enhancing the and precision of your work. 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 . 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. Colour:As Shown Material:Metal Package Contents: 1 * Countersink Drill Bits Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.