General description This 26 Pieces Wood Door Window Countersink Drill Bit Set includes a comprehensive selection of drill bits designed for various woodworking applications. The set features 8 wood cutting bits, 7 three-point drill bits, 6 countersink drill bits, and 3 taper drill bits, making it an essential tool for both professionals and DIY enthusiasts. Technical specifications Set of 7 wood drill bits: 3mm diameter x 60mm length 4mm diameter x 75mm length 5mm diameter x 85mm length 6mm diameter x 93mm length 7mm diameter x 10mm length 8mm diameter x 11mm length 10mm diameter x 12mm length 6 drill bits mill with 5 splines and 90-degree edge Length of conical burrs: 48 mm Material: 4241 high-speed steel Dimensions of drill bits: 6 mm, 8 mm, 9 mm, 12 mm, 16 mm, and 19 mm 8 drill bits wood for drill dimensions: 15.8 mm, 12.7 mm, 9.5 mm, 6.3 mm Shaft diameter: 9.3 mm Material: 45 carbon steel Set of 3 high-speed steel step drill bits: Material: high-speed steel plated titanium