Drill bit Makita D-15861 — spiral cutting, 3 mm, single piece

Makita D-15861 is a single-piece spiral cutting drill bit with a 3 mm diameter designed for precision drilling. The spiral cutting geometry promotes controlled chip evacuation, helping to maintain hole quality and reduce clogging when used in compatible materials. The bit is intended for use with handheld and bench drills and is suitable for creating small-diameter holes where accuracy and clean edges are required.

Advantages

The spiral cutting design ensures steady chip removal and improved drilling stability for small holes. Constructed as a single piece, the drill bit provides consistent concentricity and reduced runout compared with multi-part or poorly finished bits. Its 3 mm diameter gives predictable hole size for tasks that require fine drilling, and the compact form factor is compatible with most standard chucks on handheld and bench drills.

Suitable for

• Precision metalworking and thin-sheet drilling
• Woodworking tasks that require small clean holes
• Electronics and PCB prototyping where small holes are needed
• General-purpose drilling in soft plastics and composite materials

Key specifications

• Diameter: 3 mm
• Geometry: spiral cutting (single flute/spiral for controlled chip removal)
• Construction: single-piece drill bit
• Compatibility: suitable for handheld and bench drills with standard chucks

How to use

Secure the drill bit in the drill chuck and tighten firmly to minimize runout. Select an appropriate drilling speed and feed for the material—lower speeds and steady pressure for metals, higher speeds for soft plastics and wood. Use a center punch or pilot mark when drilling metal to prevent bit walking. Maintain steady axial pressure and allow the spiral geometry to clear chips; periodically withdraw the bit to remove accumulated material when drilling deeper holes. Apply cutting fluid for metalworking to extend bit life and improve hole finish.

Usage recommendations

For best results, match drill speed and lubrication to the work material, check chuck tightness before operation, and replace the bit when wear affects hole accuracy or cutting performance.