Accupro A-6120066R Micro Drill Bit Size 71 Solid Carbide

Product Description

The ACCUPRO A-6120066R is a micro drill bit designed for precision drilling in tight tolerances and small-diameter applications. Manufactured from solid carbide, this bit delivers the hardness and wear resistance required for consistent performance in metals, composites, and other demanding materials. It carries a wire gauge size of 71, corresponding to a decimal inch diameter of 0.0260 inches. The 120-degree point angle provides a standard cutting geometry suited to a wide range of workpiece materials. With an overall length of 30 mm and a right-hand spiral flute, this bit is sized for use in CNC machining centers, drill presses, and precision hand-held spindle tools operated by machinists and tool-and-die professionals.

This bit is well suited for high-precision drilling operations where small hole diameters are required, including circuit board work, watchmaking fixtures, instrument components, and fine metalwork. The straight-cylindrical shank with a 1.50 mm diameter seats securely in standard collet chucks and precision drill chucks. The bright, uncoated finish is appropriate for general-purpose use and allows easy visual inspection of the cutting edges. The miniature series designation indicates this bit is built for applications where standard-sized tooling is too large for the required hole geometry.

Key Features

• Solid carbide construction for hardness and extended tool life in demanding materials
• Wire size 71 diameter at 0.0260 inches for precision small-hole drilling
• 120-degree standard point angle for consistent entry and reduced walking
• Bright, uncoated finish suitable for general-purpose machining applications
• Right-hand spiral flute promotes chip evacuation during drilling
• Straight-cylindrical shank fits standard collet and precision drill chuck systems

Compatibility

Designed as a miniature-series replacement or stock drill bit for use in CNC machining centers, drill presses, and precision spindle tools accepting a 1.50 mm straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists familiar with small-diameter carbide tooling. Ensure the spindle and chuck are fully powered down and locked out before loading or changing the bit. Carbide bits are brittle and should not be subjected to side-loading or used in applications requiring flex. Confirm chuck runout is within acceptable tolerance before use to avoid premature bit breakage at this diameter.