Drill Bit Makita D-70297 2.4 cm Diameter 400 mm Length

The Makita D-70297 drill bit is a long, precision-engineered drilling tool with a 2.4 cm diameter and 400 mm overall length designed for demanding drilling tasks. Constructed for durability and stable cutting performance, this drill bit is suited for use with compatible drills where extended reach and consistent hole quality are required. Its geometry is optimized to provide straight, accurate holes while maintaining tool life under professional workloads.

Advantages

This drill bit offers extended reach thanks to its 400 mm length, allowing access to deep or hard-to-reach locations without compromising stability. The 2.4 cm diameter provides a balance between material removal rate and hole precision. Made to industry standards, the bit combines wear resistance and dimensional accuracy for repeatable results when used in appropriate drill chucks and applications.

Suitable for

• Drilling deep holes in timber and laminated wood panels
• Creating openings in light construction materials where length is required
• Jobs requiring consistent hole diameter over extended depth
• Professional carpentry and joinery tasks needing long-reach tooling

Key specifications

• Diameter: 2.4 cm
• Total length: 400 mm
• Material and coating: engineered for wear resistance and cutting stability
• Shank type: compatible with standard drill chucks for secure mounting
• Intended use: drilling in wood and similar construction materials

How to use

Fit the drill bit securely into a drill with a compatible chuck, ensuring the shank is fully seated and tightened. Select an appropriate rotational speed and feed rate for the material being drilled; lower speeds are recommended for larger diameters and harder materials. Begin drilling with steady, even pressure, and periodically withdraw the bit to clear chips and prevent clogging. Maintain alignment to keep holes straight over the full 400 mm length.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses and gloves, and clamp workpieces to prevent movement. For prolonged drilling or denser materials, use intermittent operation to avoid overheating and consider clearing chips more frequently to preserve cutting edges and maintain hole quality.