Auger Bit Makita D-07668 450 mm length, 30 mm diameter

Makita D-07668 auger bit, 450 mm length and 30 mm diameter, is engineered for drilling deep, clean holes in wood and similar soft construction materials. The long fluted shaft and spiral geometry deliver effective chip evacuation and reduce binding during penetration. The bit suits standard drill chucks and compatible auger adapters that accept its shank type, enabling use in handheld drills, drill stands, and portable drilling rigs for woodworking and installation tasks.

Advantages

The extended 450 mm length allows access to deep workpieces and through-holes without the need for multiple passes. A 30 mm cutting diameter produces a precise hole size for dowels, conduit passes, and larger fasteners. The spiral design ensures consistent chip removal and smoother cutting action, while a hardened cutting tip maintains sharpness and extends service life under normal operating conditions. Compatibility with common power drills and auger adapters provides flexibility across jobsite and workshop settings.

Suitable for

• Drilling deep holes in timber beams and studs
• Creating openings for pipes, cables and conduit in wooden structures
• Carpentry and joinery tasks requiring accurate large-diameter holes
• Installation work where long-reach drilling is necessary

Key specifications

• Overall length: 450 mm
• Cutting diameter: 30 mm
• Spiral flute design for chip evacuation
• Hardened cutting tip for durability
• Shank type: compatible with standard drill chucks and auger adapters

How to use

Secure the auger bit firmly in the drill chuck or appropriate auger adapter, ensuring concentric alignment to reduce wobble. Mark the drilling position on the workpiece and start drilling at low speed to establish the pilot engagement, then increase speed to a moderate level appropriate for the wood species. Apply steady axial pressure; allow the spiral flutes to carry chips out of the hole. Withdraw the bit periodically on deep holes to clear accumulated chips and to cool the cutting edge. After use, clean chips from the flutes and lightly oil the bit to prevent corrosion.

Usage recommendations

For accurate results, use the auger bit with a drill that provides stable torque and speed control. Match the drilling speed and feed pressure to the wood type: lower speeds for hardwoods and higher speeds for softwoods. Wear appropriate personal protective equipment and clamp the workpiece securely to prevent movement during long-reach drilling.