Wood drill bit set GEKO G38105, 6 pieces, sizes 4–12 mm, length 300 mm

Set of six GEKO G38105 wood drill bits designed for drilling in timber and wooden materials. The set covers diameters from 4 mm to 12 mm and each bit has a working length of 300 mm, providing extended reach for deeper holes in furniture making, construction and general woodworking. These spiral/auger style bits are intended for use with standard hand drills and drill drivers and deliver consistent hole sizing across the included diameters.

Advantages

The drill bit set offers a compact selection of commonly used diameters for woodworking, reducing the need to change bits frequently during a job. A 300 mm working length enables access to recessed or deep drilling points without extensions. The bits are compatible with typical drill chucks, facilitating fast swapping and straightforward operation. Consistent manufacturing tolerances help produce uniform holes across the set.

Suitable for

• Drilling through softwood and hardwood panels
• Furniture assembly and dowel hole drilling
• Construction tasks requiring deep or recessed holes
• General carpentry and joinery work
• Renovation projects involving wooden elements

Key specifications

• Quantity: 6 pieces
• Diameter range: 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm
• Working length: 300 mm (each bit)
• Material: hardened steel (suitable for wooden materials)
• Shank type: round shank (compatible with standard drill chucks)

How to use

Select the appropriate diameter for the required hole, secure the chosen bit in the drill chuck and tighten firmly. Position the point at the marked drilling location, align the drill perpendicular to the work surface where possible, and start drilling at low speed to establish the hole. Increase speed as needed while maintaining steady pressure; for deeper holes, periodically withdraw the bit to clear wood chips and reduce heat buildup. Clamp the workpiece securely before drilling to ensure accuracy and safety.

Usage recommendations

Use a drill with appropriate torque for long bits, avoid excessive side load and over-speeding, and clear chips regularly for best hole quality and longer bit life. For precise dowel holes, use a guide or jig to maintain perpendicular alignment.