Titanium Coated HSS Drill & Saw Bit Set,3-8mm Titanium Coated Serrated Grooving Cutting Carpenter Side Cutting Tap Spiral Saw Drill Bit,Tools suitable for making holes in wood, metal and plastic

Product features

1. 6 Common Sizes for Everyday Use – This twist drill bit set includes 3mm, 4mm, 5mm, 6mm, 6.5mm, and 8mm diameters, covering the most frequently needed sizes for daily drilling tasks. The round shank fits securely into most electric drills and bench drills, preventing slippage during use.
2. Titanium-Coated HSS for Long-Lasting Sharpness – Made from high-speed steel with a titanium coating and hardened to 60–63HRC, these bits offer excellent wear and heat resistance. The coated surface reduces friction while drilling, helping the bits stay sharper for longer through regular DIY and workshop use.
3. Fast, Accurate Starting with 135° Split Point – The 135° split point bites into the surface quickly and prevents the bit from wandering, even without a center punch. The fully ground spiral flutes efficiently clear away chips, reducing clogging and heat buildup for smoother, cleaner holes.
4. Serrated Side Cutting for Extra Versatility – The serrated side edges allow you to widen existing holes, elongate openings, or cut shallow grooves after drilling. Keep the bit rotating clockwise, then gently move against the rotation with an up-and-down sawing motion. This feature is a finishing aid, not a replacement for a saw.
5. Ideal for Thin Materials & Light Repairs – Designed for materials up to 2mm thick, including wood, plastic sheet, MDF, aluminum sheet, and iron sheet. A practical multi-material drill bit set for DIY projects, woodworking, and light household repairs. Not intended for thick timber or hardened steel.