Accupro A-6120028R Micro Drill Bit Wire 85 0.0110 in

Product Description

The ACCUPRO A-6120028R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. Built to wire gauge size 85, it measures 0.0110 inches in diameter with a 120-degree drill point angle. The straight-cylindrical shank and spiral flute geometry support consistent chip evacuation at the micro scale. With an overall length of 25.00 mm and a 1.00 mm shank diameter, this bit is engineered for miniature-series drilling work. The bright, uncoated finish is standard for carbide tooling used in applications where coating adhesion or thermal interaction must be controlled. Right-hand cutting direction is the default for standard CNC and manual spindle setups.

This drill bit is suited for precision metalworking, PCB fabrication, mold and die work, and other applications requiring micro-diameter hole generation. The miniature series designation indicates it is intended for small-part machining environments where dimensional accuracy and tool runout are critical. It is typically run in CNC machining centers, drill presses, and precision hand-held spindles with collet-style toolholding. Machinists and toolroom technicians working in aerospace, electronics, and medical device manufacturing are the primary users of tooling in this size range.

Key Features

• Wire size 85, 0.0110 inches decimal diameter for micro-precision drilling
• 120-degree standard point angle for controlled entry and reduced walking
• Solid carbide construction for rigidity and wear resistance in hard materials
• Spiral flute with right-hand cutting direction for standard spindle compatibility
• Bright uncoated finish — no coating interference in sensitive material applications
• Straight-cylindrical shank, 1.00 mm diameter, fits standard collet toolholding

Compatibility

Designed as a miniature-series solid carbide micro drill bit for use in CNC machining centers and precision drilling setups that accept a 1.00 mm straight-cylindrical shank with right-hand rotation.

Installation Notes

This tooling is installed and serviced by machinists and toolroom technicians. Ensure the spindle and collet are clean and free of runout before seating the shank. At micro diameters, even minor misalignment or excessive feed rate will cause tool breakage. Confirm spindle speed and feed rate are calculated for the 0.0110 inch diameter before engaging the cut — do not use standard drill bit feed tables intended for larger diameters.