Drill bit Makita D-07347 8 x 250 mm for metal and wood, carbide tip

Makita D-07347 8 x 250 mm drill bit is designed for general drilling tasks in metal and wood. The 8 mm diameter combined with a 250 mm overall length provides extended reach for deeper holes while the carbide tip increases cutting durability and maintains edge sharpness during repeated use. The design supports use with handheld drills and drill presses, making it suitable for construction, workshop and maintenance applications where a reliable, long-reach bit is required.

Advantages

The carbide tip delivers improved wear resistance and sustained cutting performance compared with standard high-speed steel points, reducing the need for frequent replacement. The long 250 mm length enables drilling through thicker materials or access to recessed areas without changing equipment. Compatibility with common 8 mm chucks and shanks ensures secure mounting and stable operation in both portable and stationary drilling tools.

Suitable for

• Drilling through mild steel, sheet metal and metal components
• Boring holes in timber, plywood and laminated boards
• Maintenance and repair tasks requiring extended reach
• Workshop and construction site drilling with handheld drills and drill presses

Key specifications

• Diameter: 8 mm
• Overall length: 250 mm
• Tip material: carbide
• Intended materials: metal and wood
• Suitable for: handheld drills and drill presses

How to use

Mark the drilling position and secure the workpiece to prevent movement. Select a drill with an appropriate chuck that accepts an 8 mm shank and set a suitable speed for the material: lower speeds for metal, higher speeds for wood. Start drilling with light pressure to establish the pilot cut, then apply steady, even pressure while allowing the bit to do the cutting. Withdraw the bit occasionally to clear chips and reduce heat build-up, especially when drilling metal. After use, clean debris from the flutes and store the bit in a protective case to preserve the carbide tip.

Usage recommendations

Use cutting lubricant or cutting oil when drilling metals to extend bit life and improve chip evacuation. For best results with wood, ensure the bit is sharp and run the drill at an appropriate speed to avoid burning or splintering. Inspect the carbide tip for damage before use and replace the bit if the tip is chipped or excessively worn.