Accupro A-6120083R Micro Drill Bit 0.83 Mm Solid Carbide

Product Description

The ACCUPRO A-6120083R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. It measures 0.83 mm in diameter (0.0327 inches decimal equivalent) with a 30 mm overall length and a 4.40 mm flute length. The 120-degree standard point angle provides accurate entry and reduces walking on hard materials. The bright, uncoated finish keeps the surface free of added coating thickness, which matters when holding tight hole diameters. This bit is built for machinists, tool and die technicians, and precision fabricators working in small-hole drilling operations.

This micro drill bit is suited for small-bore work in metals, printed circuit board materials, plastics, and other substrates where standard drill sizes are too large. The 1.50 mm straight-cylindrical shank fits standard micro chuck collets and precision drill press spindles. The miniature series designation places this bit in the category of precision tooling used in instrument manufacturing, electronics assembly, medical device fabrication, and fine mechanical work. Right-hand cut and regular spiral flute geometry support chip evacuation in shallow-to-moderate depth holes.

Key Features

• 0.83 mm diameter with 0.0327 inch decimal equivalent for precision small-hole drilling
• Solid carbide construction for rigidity and wear resistance in hard materials
• 120-degree standard point angle for accurate positioning and clean entry
• Bright, uncoated finish maintains true cutting geometry without coating buildup
• 1.50 mm straight-cylindrical shank for compatibility with standard micro collets
• Right-hand spiral flute promotes chip evacuation during drilling

Compatibility

Designed for use in precision drill presses, CNC drilling machines, and hand-held micro chuck systems that accept a 1.50 mm straight-cylindrical shank.

Installation Notes

This bit should be installed by a machinist or precision tool operator familiar with micro drill handling. Secure the shank fully in the collet or chuck before operation and verify runout before drilling to avoid bit breakage at this diameter. Use appropriate spindle speeds for the workpiece material, as micro carbide bits are sensitive to lateral loading and deflection. Do not use excessive feed pressure; carbide at this diameter is brittle and will snap under side load or impact.