Wood Borer Bit GEKO G38125 – 30 mm cutting diameter, for hand or power drills, pack of 100

GEKO G38125 wood borer with a 30 mm cutting diameter is designed for creating clean circular bores in timber to remove knots and defects prior to repair or fitting. Supplied as a pack of 100, these cutters are compatible with hand-held and power drills and are intended for use in carpentry, joinery and renovation tasks where precise removal of damaged wood is required. The tool produces a consistent hole profile that facilitates patching, inserting plugs or preparing surfaces for further treatment.

Advantages

The GEKO wood borer delivers a 30 mm circular cut with stable centering for repeatable results. Its design enables fast removal of knots and localized defects while preserving surrounding material. Supplied in a bulk pack of 100, the set offers cost-effective replacement availability for workshops and renovation crews. The bit is suitable for both manual and powered drilling, providing flexibility across different work environments.

Suitable for

• Removing knots and rotten spots from solid wood
• Creating circular recesses for wooden plugs or repair inserts
• Preparing timber surfaces before gluing, veneering or finishing
• On-site carpentry and joinery repair tasks
• Renovation and restoration of wooden structures

Key specifications

• Cutting diameter: 30 mm
• Compatible tools: hand-held drills and electric/power drills
• Package quantity: 100 pieces
• Cut type: circular bore for wood material
• Primary material application: solid timber and common wood-based materials

How to use

Select an appropriate drill with a compatible chuck and ensure the workpiece is securely clamped. Fit the GEKO 30 mm wood borer into the drill chuck and tighten firmly. Position the borer on the defect or knot and apply steady, even pressure while running the drill at moderate speed to achieve a clean circular cut. Withdraw the bit periodically to clear wood chips when drilling deeper bores. After cutting, prepare the hole for a plug or patch as required and finish the surface according to the selected repair method.

Usage recommendations

Use personal protective equipment such as eye protection and a dust mask when drilling. For best results, clamp workpieces and use moderate drill speeds to reduce splintering. Match plug or insert dimensions to the 30 mm bore for secure repairs. Store the pack in a dry place to avoid corrosion and inspect bits for wear before use.