Accupro A-6120186R Micro Drill Bit 1.86mm Solid Carbide

Product Description

The ACCUPRO A-6120186R is a solid carbide micro drill bit designed for high-precision drilling in miniature and tight-tolerance applications. With a cutting diameter of 1.86 mm (0.0732 inches) and a 120-degree drill point angle, this bit delivers clean, accurate entry points in hard and abrasive materials where standard high-speed steel tooling falls short. The bright uncoated finish maintains sharp cutting edges right out of the package. An overall length of 38.00 mm (1.496 inches) and a 2.00 mm straight-cylindrical shank make it compatible with standard collet and chuck setups used in CNC drilling, precision machining, and circuit board fabrication.

This bit belongs to the Miniature Series and is suited for production and repair work requiring consistent hole quality at small diameters. Typical applications include printed circuit board drilling, instrument component machining, medical device manufacturing, and precision metalworking in aluminum, brass, stainless steel, and similar materials. The right-hand cutting direction and spiral flute geometry support efficient chip evacuation during through-hole drilling operations. Sold individually, with a minimum order quantity of 10 units.

Key Features

• 1.86 mm (0.0732 inches) cutting diameter for tight-tolerance micro drilling
• Solid carbide construction provides rigidity and wear resistance in hard materials
• 120-degree drill point angle for accurate, self-centering entry
• Bright uncoated finish maintains consistent edge geometry
• Spiral flute with right-hand cut promotes efficient chip removal
• 2.00 mm straight-cylindrical shank fits standard collets and chucks

Compatibility

Designed as a miniature series solid carbide micro drill bit compatible with CNC machining centers, drill presses, and hand-held precision drilling equipment fitted with collets or chucks accommodating a 2.00 mm straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with micro-diameter drill bit handling. Ensure the spindle and workpiece are fully secured before starting the cut, as micro drill bits are susceptible to breakage under lateral load or runout. Power down all equipment before changing tooling. Avoid applying excessive feed pressure on entry, as carbide micro drills require controlled feed rates to prevent fracture.