Drill bit GEKO wood auger 18 x 230 mm spiral bit (pack 25/100)

GEKO spiral wood auger drill bit 18 x 230 mm is designed for creating deep, precise holes in both soft and hard wood. The auger profile features a screw tip that accurately positions and feeds the bit, while the spiral flute efficiently evacuates chips and reduces friction. Supplied in a pack configuration listed as 25/100, this bit is suitable for a range of woodworking tasks where clean boreholes and controlled drilling speed are required.

Advantages

The screw tip ensures fast self-feeding and accurate centring, reducing the need for pilot holes. The spiral flute geometry removes chips quickly to maintain clean holes and prevent clogging during deep drilling. Hardened cutting edges provide longer life and consistent performance across repeated use. The shank design allows secure clamping in standard chucks, ensuring stable operation and reduced runout.

Suitable for

• Carpentry and timber framing
• Joinery and furniture making
• Installation of dowels and large wood fasteners
• General woodworking and renovation projects

Key specifications

• Drill diameter: 18 mm
• Overall length: 230 mm
• Tip type: self-feeding screw point for accurate starts
• Flute type: spiral auger flute for efficient chip removal
• Material: hardened steel cutting edges
• Pack configuration: supplied in bulk pack noted as 25/100

How to use

Mark the drilling position and secure the workpiece to prevent movement. Fit the auger bit into a compatible drill or brace and tighten the chuck securely. Start drilling at low speed to engage the screw tip and then increase speed as the bit feeds into the material. Apply steady, moderate pressure; allow the screw tip and spiral flute to pull the bit through the wood. Withdraw the bit periodically when drilling deep holes to clear chips if necessary.

Usage recommendations

Use cutting lubricant or apply light wax for very dense hardwoods to reduce heat and wear. For best results, use with a drill that provides consistent torque and avoid excessive side load to maintain straight, clean holes.