Accupro A-6100086R Micro Drill Bit 0.0339 in Solid Carbide

Product Description

The ACCUPRO A-6100086R is a solid carbide micro drill bit designed for precision drilling in miniature and tight-tolerance applications. It features a 0.0339-inch diameter with a 120-degree drill point angle and a bright, uncoated finish. The straight-cylindrical shank measures 1.50 mm in diameter, and the overall length is 30.00 mm. The spiral flute design promotes chip evacuation during drilling. This bit is suited for machinists, toolroom technicians, and precision fabricators working with small-diameter holes in metal, composites, or hard plastics.

This micro drill bit fits into miniature series drilling operations where tight dimensional control is required. The right-hand cutting direction and standard point type make it compatible with conventional CNC machining centers, drill presses, and precision hand-held spindles. It is commonly used in industries requiring fine-detail work such as electronics assembly, instrument manufacturing, and precision mechanical fabrication. The 7.10 mm flute length provides adequate chip clearance for the drill diameter.

Key Features

• 0.0339-inch diameter for micro and miniature drilling applications
• 120-degree drill point angle suits a wide range of work materials
• Solid carbide construction provides hardness and wear resistance
• Bright/uncoated finish with no added coating thickness affecting tolerances
• Spiral flute with right-hand cutting direction for standard spindle compatibility
• Straight-cylindrical shank for secure chuck retention

Compatibility

Designed as an OEM-style miniature series drill bit compatible with standard straight-shank drill chucks and collets accepting a 1.50 mm shank diameter.

Installation Notes

Micro drill bits of this diameter require a precision collet or micro drill chuck to minimize runout. Ensure the spindle and chuck are clean and free of debris before seating the shank. Use appropriate spindle speeds and feed rates for solid carbide tooling in the selected work material. Handle with care, as solid carbide at this diameter is brittle and susceptible to breakage from lateral loading or improper setup.