Drill Bit Dolfamex NAWIERTAK NWRC-L 3.15 mm L-125

Dolfamex NAWIERTAK NWRC-L 3.15 mm L-125 is a precision drill bit engineered for narrow-diameter drilling tasks. With a 3.15 mm cutting diameter and a total length of 125 mm, this bit is suitable for operations that require accurate pilot holes or fine through-holes. The construction and geometry of the bit make it appropriate for guided drilling in a drill press or for careful handheld use where control and accuracy are important.

Advantages

The slender 3.15 mm diameter provides minimal material displacement and precise hole positioning. The 125 mm overall length offers extended reach for deeper or recessed drilling without sacrificing control. The bit is designed to produce clean holes in materials such as metal, wood and composite panels, reducing the need for secondary finishing. Its compatibility with standard drill chucks and common drilling setups enables easy integration into existing toolkits.

Suitable for

• Drilling pilot holes for screws and fasteners in metal, wood or composite materials
• Precision assembly and maintenance work requiring small-diameter holes
• Guided drilling on drill presses and hand-held drilling where controlled depth is needed

Key specifications

• Cutting diameter: 3.15 mm
• Overall length: 125 mm
• Intended materials: metal, wood, composites
• Suitable for use in standard drill chucks
• Designed for precision and minimal material removal

How to use

Select an appropriate drill speed and clamping method for the material being worked on. Secure the workpiece to prevent movement and install the 3.15 mm bit in a compatible drill chuck, ensuring it is tightened and centered. For metal, apply cutting fluid or lubricant as needed and use steady pressure with controlled feed rate. For wood and composite materials, moderate speeds and a firm, steady hand will produce clean holes. Withdraw periodically on deeper holes to clear chips and avoid overheating.

Usage recommendations

For best results, use a drill press or guide when maximum accuracy is required and choose appropriate speeds and lubrication depending on the material. Inspect the bit for wear and replace when cutting performance degrades to maintain hole quality and prevent workpiece damage.