Drill bit set KWB 514200 — 7-piece wood drill bits

kwb 514200 wooden drill bit set, industrial quality, contains seven chromium-vanadium (CrV) steel bits with round shanks. Each bit features a centre point and shoulder cutter with precisely formed, ground spirals and a two-phase spiral design for concentric running and clean, break-out free holes in soft and hardwoods. The bits are finished with a chemical black surface treatment.

Advantages

The set provides durable CrV steel construction for consistent cutting performance, a centre point and shoulder cutter for accurate positioning and clean hole edges, and two-phase spiral geometry to ensure concentric running and efficient chip evacuation. Ground spirals and chemical black finish increase cutting accuracy and corrosion resistance.

Suitable for

• Drilling precise holes in softwood
• Drilling precise holes in hardwood
• Carpentry and joinery tasks requiring clean break-out free holes
• Workshop and industrial woodworking applications

Key specifications

• Material of bits: Chromium-vanadium (CrV) steel
• Number of pieces: 7
• Shank type: Round shank
• Tip: Centre point with shoulder cutter
• Spiral: Two-phase spirals, ground
• Surface finish: Chemical black
• Designed use: For soft- and hardwoods

How to use

Secure the round shank drill bit in a compatible drill chuck. Mark the drilling position and use the centre point for accurate alignment. Drill at a steady speed appropriate for the wood species, allowing the two-phase spirals to evacuate chips. To avoid overheating, withdraw the bit periodically when drilling deep holes and maintain firm, even pressure until the hole is complete.

Usage recommendations

Use appropriate personal protective equipment, select drill speeds suited to the wood hardness, and ensure the workpiece is clamped. For the best hole quality, back up thin materials to prevent tear-out on the exit side.