Drill bit GEKO G37306 auger bit for wood 18 x 152 mm HEX shank

GEKO G37306 auger bit for wood, 18 x 152 mm with a HEX shank, is designed to bore clean, deep holes in soft and hardwoods. The 18 mm cutting diameter and 152 mm working length make it suitable for door lock installation, joinery and structural carpentry where precise, straight holes are required. The HEX shank provides a secure connection in compatible chucks and quick-change holders, reducing slippage during drilling with hand braces or power drills.

Advantages

The auger bit delivers efficient wood chip extraction and clean hole edges thanks to its spiral flute geometry and sharp cutting screw tip. The 18 mm diameter offers a common size for hardware fitting while the 152 mm working length allows through- and deep-bore operations without multiple passes. The HEX shank increases torsional grip in hex-compatible chucks and adapters, improving control and reducing wobble.

Suitable for

• Installing door locks and hardware
• Joinery and furniture making
• Structural carpentry and beam boring
• Hand brace drilling and power-drill use with hex adapters

Key specifications

• Cutting diameter: 18 mm
• Working length: 152 mm
• Shank type: HEX
• Intended material: wood (soft and hardwood)
• Tip type: screw/auger tip for self-feeding and centered starts
• Flute type: spiral for chip removal

How to use

Secure the GEKO G37306 auger bit in a compatible hex chuck or quick-change adapter and set the drill to an appropriate speed for the wood species. Mark the drilling point and start with light pressure to engage the screw tip, then apply steady feed pressure. Allow the bit to cut and remove chips; withdraw occasionally for chip clearing when drilling deep holes. Use appropriate safety equipment and ensure the workpiece is clamped to prevent movement.

Usage recommendations

For cleaner holes and longer tool life, pre-drill a pilot guide or use a sacrificial backing board when drilling through thin panels. Match drill speed to wood density—lower speeds for hardwoods—and keep the bit sharp; replace if tips become dull or damaged.