Accupro A-6100037R Micro Drill Bit Size 79 Solid Carbide

Product Description

The ACCUPRO A-6100037R is a miniature series solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. Sized at wire gauge 79 with a decimal diameter of 0.0146 inches, this bit features a 120-degree point angle and a spiral flute configuration for efficient chip evacuation. The bright, uncoated finish is suited for use in a wide range of base materials. The overall length is 25 mm with a straight-cylindrical shank diameter of 1.00 mm, making it compatible with standard precision chucks and collet holders. Machinists and toolroom technicians are the primary users of this bit.

This micro drill bit is built for miniature and precision drilling tasks common in electronics manufacturing, instrument work, PCB fabrication, medical device production, and fine mechanical assemblies. The right-hand cut and regular spiral type make it appropriate for conventional drilling operations on CNC machining centers, drill presses, and precision hand-held spindles where micro-diameter accuracy is critical. Its compact geometry suits applications where drill runout and hole position tolerance are tightly controlled.

Key Features

• Wire gauge size 79, decimal diameter 0.0146 inches for micro-precision drilling
• 120-degree standard point angle for accurate positioning and clean entry
• Solid carbide construction for rigidity and wear resistance in hard or abrasive materials
• Bright, uncoated finish suitable for a broad range of workpiece materials
• Spiral flute with right-hand cut for efficient chip evacuation during drilling
• Straight-cylindrical shank at 1.00 mm diameter for secure chuck or collet engagement

Compatibility

Designed as a miniature series micro drill bit for use in precision chucks and collet systems accepting a 1.00 mm straight-cylindrical shank, suitable for CNC machining centers and precision drilling equipment requiring wire gauge 79 tooling.

Installation Notes

Installation and use of micro drill bits should be performed by qualified machinists or toolroom technicians familiar with precision drilling equipment. Ensure the spindle and chuck are fully de-energized and at a complete stop before inserting or removing the bit. Use a collet or chuck rated for 1.00 mm shank diameters to minimize runout. Micro-diameter carbide bits are brittle and susceptible to breakage from lateral loading or excessive feed rates — follow machine manufacturer guidelines for speed and feed recommendations at this diameter.