Drill bit GEKO spiral wood auger 20 x 230 mm (pack 25/50)

Spiral auger drill bit GEKO 20 x 230 mm is designed for precise and efficient drilling in soft and hardwood. The bit's spiral flute and central spur create clean entry and exit holes while facilitating fast chip evacuation, enabling deeper boreholes with reduced friction. This model is provided in pack quantities suitable for professional workshops and construction sites, offering consistent performance across repeated use.

Advantages

The spiral geometry promotes continuous chip removal, reducing clogging and heat build-up during prolonged drilling. The central spur helps to centre the bit accurately, producing neat round holes with minimal tear-out. A durable steel construction maintains cutting edge stability under typical woodworking loads, and the long 230 mm length allows access to deeper material sections without extension tools.

Suitable for

• Drilling through timber beams and joists
• Creating dowel, bolt, and fastening holes in carpentry
• Repetitive holemaking in joinery and furniture production
• On-site construction work requiring deep, clean holes

Key specifications

• Diameter: 20 mm
• Overall length: 230 mm
• Spiral flute design for effective chip removal
• Central spur for accurate centring and clean edges
• Suitable for use with hand braces and power drills with compatible chucks

How to use

Secure the drill bit firmly in the chuck or brace and ensure the workpiece is clamped to prevent movement. Position the central spur on the desired drilling point, apply steady pressure and start drilling at moderate speed to allow the spur to cut and guide the bit. Maintain consistent feed until the required depth is reached; withdraw periodically on deep holes to clear chips if necessary. After use, clean swarf from the flute and store the bit dry to prevent corrosion.

Usage recommendations

Use appropriate personal protective equipment including eye protection and hearing protection when operating power tools. For hardwoods, reduce drilling speed and apply steady pressure to avoid overheating. Match the bit diameter to the fastener or dowel for a proper fit, and consider using lubrication or wax only when recommended for specific wood types to ease chip flow.