Drill bit GRAPHITE 14 mm spiral wood hex shank (57H255)

Spiral wood drill bit by GRAPHITE, 14 mm diameter with a hex shank (model 57H255) is designed for efficient drilling in both soft and hard wood as well as wood-based materials. The spiral flute geometry evacuates chips smoothly, reducing friction and helping to produce clean, accurate holes. The hex shank ensures a secure grip in chucks and rapid compatibility with quick-change systems, making the bit suitable for handheld drills and drill drivers used in woodworking and general-purpose tasks.

Advantages

The spiral flute provides continuous chip removal for cleaner holes and less clogging during prolonged use. A 14 mm cutting diameter delivers a balance between removing sufficient material and maintaining control for precision drilling. The hex shank improves torque transfer and reduces slippage in keyless chucks and quick-change adapters. The bit is suitable for repeated use in common woodworking and repair tasks thanks to its geometry optimized for wood and wood-based panels.

Suitable for

• Drilling through softwood and hardwood
• Working with plywood, MDF, and particleboard
• Joinery and cabinet installation
• Furniture assembly and repair
• General DIY and construction site tasks

Key specifications

• Cutting diameter: 14 mm
• Tip and flute type: spiral flute for chip evacuation
• Shank type: hexagonal shank for secure grip
• Material suitability: softwood, hardwood, plywood, MDF, particleboard
• Compatibility: handheld drills, drill drivers, quick-change chucks

How to use

Secure the hex shank of the drill bit firmly in the drill chuck or quick-change adapter. Select a moderate drilling speed appropriate for the material: lower speeds for hard wood and higher speeds for softwood or thin panels. Start drilling with steady pressure, allowing the spiral flute to evacuate chips; withdraw the bit occasionally when drilling deep holes to clear debris and reduce heat buildup. Hold the workpiece firmly or clamp it to prevent movement and ensure accurate hole placement.

Usage recommendations

Use cutting lubricant or reduced speed only when drilling veneered panels to minimize tear-out. For cleaner entry and exit holes in delicate surfaces, consider using a backing board and pilot marking before drilling. Inspect the bit for wear or dulling and replace when precision or cutting performance decreases.