Package contents 1 x 8.4 mm drill bit (pack of 1) Key benefits — why you need this bit Improved accuracy: 135degree splitpoint tip reduces walking and centers quickly, so holes start true without pilot marks. Long life and durability: M42 cobalt speed steel with 8% cobalt delivers hardness, heat and crack resistance for demanding jobs. Better surface protection: Titanium nitride (TiN) coating increases wear and corrosion resistance, extending tool life and maintaining cutting performance. Versatile performance: Designed for metal, wood, and plastic; keeps cutting edges sharp at RPM for clean, consistent holes. Main features Diameter: 8.4 mm Overall length: 115 mm (4.53') Flute length: 60 mm (2.36') Point geometry: 135degree splitpoint for reduced walking and improved drill accuracy Material: M42 cobalt speed steel (8% cobalt) Coating: Titanium nitride (TiN) Performance highlights Excels on strength and difficulttomachine metals thanks to M42 cobalt alloy and heat resistance. Maintains cutter edge and dimensional stability in hardwoods (including dense species like rosewood and teak), composite boards, and plastics. Compared with standard HSS bits, offers roughly 3–5 times longer tool life, lowering cost per hole and reducing tool changes in production. Typical applications (realworld scenarios) Furniture manufacturing: Drilling dowel and tenon holes in dense hardwoods (teak, rosewood) for strong joinery. Metal fabrication: Precise holes in stainless steel and other strength alloys for bolts and fasteners. Craft and carving work: Detailed holes in carved components and thin wood sheets for artistic or restoration projects. Compatibility and use notes Suitable for woodworking, metalworking, and plastics; works with handheld drills and drill presses. Use appropriate speeds and cutting fluids for metal drilling to maximize bit life and maintain accuracy. Exact specifications and functions are retained as listed: 8.4 mm diameter, 115 mm overall length, 60 mm flute length, 135degree splitpoint, M42 (8% cobalt) HSS, TiN coating.