Drill Bit GEKO G37420 wood auger 24 x 460 mm spiral bit for wood

Spiral wood auger drill bit GEKO G37420 with a 24 mm cutting diameter and 460 mm overall length is designed for making clean, deep holes in timber, beams and other wooden structures. The auger-style twist profile clears chips efficiently, helping maintain a straight drill line and reducing clogging during extended drilling operations. It is suitable for use with hand braces and with power drills when the chuck and any required adapters provide secure, concentric clamping.

Advantages

The auger geometry provides active chip extraction and stable feed, resulting in cleaner hole walls and reduced operator effort. A long working length gives access to deep drilling tasks without the need for multiple passes. The screw tip assists in self-feeding, improving accuracy when starting holes and maintaining alignment during drilling. Hardened cutting edges retain sharpness under typical woodworking loads.

Suitable for

• Creating through and blind holes in structural timber and beams
• Drilling holes for dowels, bolts and wiring in wooden constructions
• Use with hand braces for controlled, low-speed drilling
• Use with corded or cordless drills when compatible chuck/adapters are fitted

Key specifications

• Cutting diameter: 24 mm
• Overall length: 460 mm
• Design: spiral/auger profile for chip removal
• Tip: screw/self-feeding point for easier penetration
• Suitable materials: soft and hard woods, timber elements

How to use

Select a drill or hand brace capable of securely holding the shank and providing the required control. Mark the hole location and, if needed, use a pilot mark to position the screw tip. Start drilling at low speed to let the screw tip engage, then apply steady pressure while allowing the auger to withdraw chips through the spiral flute. For deep holes, periodically withdraw the bit to clear chips and prevent clogging. When using power drills, ensure speed and feed are matched to the wood type to avoid burning or excessive wear.

Usage recommendations

Use cutting lubricant or wax sparingly when drilling hardwoods to reduce friction and prolong cutting edge life. Inspect the bit before use for sharpness and straightness; replace if the cutting edges are chipped or the shank is bent. Store the bit in a dry place to avoid corrosion and protect the cutting edges during transport.