Drill bit KWB 511470 spiral cutting drill bit Ø 1 cm, 1 pc

Drill bit KWB 511470 spiral cutting drill bit Ø 1 cm, 1 pc is a single-piece spiral wood drill designed for creating precise 10 mm round holes in soft and hardwood. The bit features a centre point and shoulder cutter to ensure concentric running and clean, break-out free exit, while the two-phase spiral geometry and ground, chemically blackened flutes support reliable chip evacuation and steady drilling. The round shank fits standard chucks and the industrial-quality construction is intended for general-purpose woodworking tasks.

Advantages

The spiral cutting design provides efficient chip removal and reduces clogging during drilling. The centre point and shoulder cutter improve alignment and deliver clean hole edges without splintering at the exit side. Ground spirals and chemical black finish enhance durability and reduce friction for smoother operation. The round shank allows simple mounting in most drills.

Suitable for (tasks / use cases)

• Drilling 10 mm through-holes and blind holes in softwood
• Drilling 10 mm through-holes and blind holes in hardwood
• General woodworking and joinery where clean hole edges are required
• Repairs and DIY projects requiring precise, concentric holes

Key specifications

• Brand: KWB
• Manufacturer part number (MPN): 511470
• EAN: 4009315114705
• Type: Spiral cutting wood drill bit with centre point and shoulder cutter
• Diameter: 10 mm (Ø 1 cm)
• Quantity: 1 piece
• Shank: Round shank
• Material / finish: Ground spirals, chemical blackened
• Suitable for: Soft- and hardwoods

How to use

Secure the drill bit in the drill chuck by tightening the round shank firmly. Mark the drilling position and start drilling at low speed to engage the centre point for accurate alignment. Increase speed as needed while maintaining steady pressure; the spiral flutes will evacuate chips. For through-holes, support the workpiece on the exit side or finish the hole from both sides to minimise break-out. Clean chips from the flutes regularly during extended use.

Usage recommendations

Use appropriate drill speeds for the wood type—lower speeds for hardwood, moderate speeds for softwood—and apply steady pressure without forcing the bit. Keep the bit sharp and free of resin build-up; replace if the centre point or cutting edges show excessive wear. Wear eye protection and follow standard workshop safety practices.