Accupro A-6200090R Micro Drill Bit 0.9 Mm Solid Carbide

Product Description

The ACCUPRO A-6200090R is a solid carbide micro drill bit designed for precision drilling in miniature and small-diameter applications. With a 0.9 mm (0.0354 inch) cutting diameter and a 140-degree standard point angle, this bit delivers accurate hole entry and clean breakout in tight-tolerance work. The bright/uncoated finish is suited for use in materials where coating additives are not required or desired. Overall length is 50 mm, and the straight-cylindrical shank measures 3.0 mm in diameter, making it compatible with standard collet chucks and precision drill chucks used in CNC machining, tool rooms, and bench drilling operations.

This drill bit is used in machining environments that require small-diameter hole production — including printed circuit board work, instrument manufacturing, medical device components, and precision metalworking. The spiral flute with regular helix promotes chip evacuation from shallow-to-moderate depth holes. It is typically installed in CNC machining centers, CNC drill presses, or precision bench drill presses by machinists, tool-and-die makers, and production drilling operators. The miniature series designation indicates this bit is engineered specifically for sub-1 mm through small-diameter drilling demands.

Key Features

• 0.9 mm (0.0354 inch) cutting diameter for miniature hole applications
• 140-degree standard point angle for accurate hole entry and reduced thrust
• Solid carbide construction for rigidity and wear resistance in precision drilling
• Bright/uncoated finish — no coating interference in sensitive material applications
• Spiral flute with regular helix promotes chip evacuation
• 3.0 mm straight-cylindrical shank fits standard precision collet and drill chucks

Compatibility

Designed as an OEM-style miniature series drill bit compatible with precision collet chucks and drill chucks accepting a 3.0 mm straight-cylindrical shank diameter.

Installation Notes

Install this drill bit in a precision collet chuck or drill chuck rated for the 3.0 mm shank diameter, ensuring the chuck is properly tightened before operation. Verify spindle runout is within acceptable tolerance before drilling — micro drill bits are sensitive to runout and can fracture under lateral loading. Ensure the workpiece is securely fixtured. Use appropriate cutting speeds and feed rates for the workpiece material; consult published machining data for solid carbide micro drills in the applicable material.