Accupro A-6120171R Micro Drill Bit 1.71mm Solid Carbide

Product Description

The ACCUPRO A-6120171R is a solid carbide micro drill bit designed for precision small-hole drilling in demanding shop and production environments. It measures 1.71 mm (0.0673 inches) in diameter with a 120-degree drill point angle and a standard point type that promotes accurate entry without a pilot hole. The overall length is 38.00 mm with a 7.20 mm flute length, keeping the tool rigid in tight setups. The bright, uncoated finish makes tool wear easy to monitor during use. This bit is part of the Miniature Series and is suited for machinists, tool and die makers, and precision fabricators working with small-diameter hole requirements.

This micro drill bit is used in applications where small, accurate holes are required in materials such as metals, plastics, and composites. The solid carbide construction maintains cutting edge integrity at higher RPMs compared to high-speed steel alternatives. With a straight-cylindrical shank at 2.00 mm diameter, it seats securely in standard collets and precision drill chucks. Typical use cases include PCB work, mold making, watch and instrument components, medical device components, and other fine-tolerance production drilling tasks where hole location and diameter accuracy are critical.

Key Features

• 1.71 mm (0.0673 inches) drill diameter for precise small-hole applications
• Solid carbide construction for rigidity and extended edge life at high spindle speeds
• 120-degree point angle for clean entry on a range of workpiece materials
• Bright, uncoated finish allows direct visual inspection of tool wear
• Spiral flute, right-hand cutting direction for standard CNC and manual drilling setups
• Straight-cylindrical shank at 2.00 mm for secure collet or drill chuck retention

Compatibility

Designed as a miniature-series replacement or production drill bit compatible with standard collets and precision drill chucks accepting a 2.00 mm straight-cylindrical shank.

Installation Notes

Install and remove this bit only while the spindle is fully stopped and locked. Use a precision collet or drill chuck rated for 2.00 mm straight shanks to ensure concentricity and prevent runout at the small diameters involved. Solid carbide is brittle compared to high-speed steel, so avoid side loading, interrupted cuts without proper feed adjustment, or dropping the tool on hard surfaces. Follow your machine manufacturer and applicable shop safety guidelines when setting spindle speed and feed rate for the workpiece material.