Drill Bit Makita D-70443 3 cm Diameter 600 mm Length

The Makita D-70443 drill bit has a 3 cm diameter and a 600 mm length, designed for demanding drilling tasks where depth and hole diameter are critical. Constructed to fit compatible Makita chucks and systems, this long drill bit is intended for applications requiring precise straight drilling through a range of materials. The product overview emphasizes practical dimensions and compatibility for professional use.

Advantages

This 3 cm diameter, 600 mm length drill bit provides extended reach for deep holes and long-reach drilling applications while maintaining stable centering and straightness. Its design supports efficient chip evacuation and controlled cutting action to reduce wobble and improve hole quality. Built for repeated use in professional environments, the bit offers durability and consistent performance when paired with appropriate speed and feed settings.

Suitable for

• Drilling long, straight holes in wood and engineered timber
• Creating large-diameter through holes for plumbing and electrical installations
• Work requiring extended reach such as floorboards, studs, and decking
• Professional carpentry and construction tasks where a 3 cm hole is needed

Key specifications

• Diameter: 30 mm
• Overall length: 600 mm
• Intended use: long-reach drilling
• Compatibility: designed for use with compatible handheld drills and drill drivers
• Typical materials: wood, engineered timber, and similar construction materials

How to use

Install the drill bit securely in the drill chuck according to the drill manufacturer's instructions, ensuring correct seating and tightening. Select a moderate drilling speed and steady feed to maintain straightness and reduce heat buildup. For deep holes, periodically withdraw the bit to clear chips and prevent clogging. Use appropriate personal protective equipment, clamp or support the workpiece, and follow material-specific drilling techniques for best results.

Usage recommendations

For long service life and consistent hole quality, use correct drill speed for the material, avoid excessive side load, and clear chips frequently during deep drilling. Ensure the drill used provides sufficient power and stable guidance to minimize deflection when working with a 600 mm long, 30 mm diameter bit.