STONE REEF Wood Drill Bit Set Long Professional [7 Piece Including Bag] Auger Diameter 4 mm, 5 6 7 8 10 12 mm x 230 Formwork Drill, Beam

TECHNICAL SPECIFICATIONS: Professional 7-piece wood drill bit set including diameters 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 10 mm, and 12 mm. All bits feature an extra-long overall length of 230 mm, providing a significant drilling depth for thick beams, timber frames, and deep pilot holes in construction timber. MATERIAL & TITANIUM FINISH: Manufactured from high-speed steel (HSS) with a specialised Titanium nitride coating. This finish reduces friction, lowers heat build-up during high-speed rotation, and ensures superior corrosion resistance and a longer service life compared to standard carbon steel bits. BRAD POINT PRECISION: Each bit is engineered with a sharp centering tip (Brad Point) for exact positioning without slipping. The dual shoulder cutters ensure clean, splinter-free hole edges, while the precision-ground spiral flute enables rapid chip evacuation to prevent clogging in deep holes. APPLICATION & COMPATIBILITY: Designed specifically for all types of wood, including softwood, hardwood, plywood, and MDF. The round shank is compatible with all standard corded and cordless drills, rotary hammers (with chuck adapter), and drill presses with a 10 mm or 13 mm chuck. PROFESSIONAL GRADE: Engineered for carpentry, timber framing, and heavy-duty DIY projects. The 230 mm length allows for drilling through multiple layers or thick joists in one pass. Supplied in a reinforced storage case for organized transport and protection of the precision cutting edges.