Accupro A-6100179R Micro Drill Bit 1.79 Mm Solid Carbide

Product Description

The ACCUPRO A-6100179R is a solid carbide micro drill bit designed for high-precision drilling in tight-tolerance applications. With a 1.79 mm (0.0705 inch) diameter and a 120-degree point angle, this bit delivers clean, accurate entry in small-diameter work. The spiral flute geometry promotes efficient chip evacuation during drilling. Solid carbide construction provides the rigidity and wear resistance required when drilling hard materials or maintaining tight positional accuracy at small diameters. This bit is sold individually and is part of the Miniature series, suited for machinists, toolmakers, and precision fabricators working in CNC or manual drilling operations.

This micro drill bit is used in precision machining environments where small-diameter hole-making is required. Typical applications include printed circuit board drilling, instrument components, medical device parts, and small mechanical assemblies. The straight-cylindrical shank allows it to seat in standard drill chucks and collets sized for 2 mm shank diameters. Right-hand cut geometry is compatible with conventional spindle rotation on mills, drill presses, and CNC machining centers.

Key Features

• Solid carbide construction for rigidity and extended tool life in small-diameter drilling
• 1.79 mm (0.0705 inch) cutting diameter with a 120-degree standard point angle
• Spiral flute design promotes chip evacuation and reduces heat buildup
• Straight-cylindrical shank at 2 mm diameter fits standard chucks and collets
• Bright/uncoated finish suitable for a wide range of workpiece materials
• Right-hand cut for use with conventional clockwise spindle rotation

Compatibility

Designed as a miniature-series replacement or stock drill bit compatible with any drill press, CNC machining center, or manual mill equipped with a chuck or collet accepting a 2 mm straight-cylindrical shank.

Installation Notes

Installation and use of this tool should be performed by qualified machinists or toolmakers familiar with small-diameter carbide tooling. Ensure the spindle and workpiece are fully secured before initiating the cut, as carbide micro drills are brittle and susceptible to breakage under lateral load or misalignment. Do not use excessive feed pressure; carbide tooling at this diameter requires controlled feed rates to prevent catastrophic bit failure. Verify chuck or collet runout is within acceptable limits before use to maintain hole positional accuracy.