Accupro A-6120190R Micro Drill Bit 1.9 Mm Solid Carbide

Product Description

The ACCUPRO A-6120190R is a miniature series solid carbide micro drill bit designed for precision drilling in small-diameter applications. With a 1.9 mm cutting diameter (0.0748 inches decimal equivalent) and a 120-degree standard point angle, this bit delivers accurate hole entry and consistent sizing in tight-tolerance work. The solid carbide construction provides the rigidity and wear resistance required when drilling hard or abrasive materials. The bright, uncoated finish keeps the surface free from added coatings that could affect dimensional accuracy at this scale. This bit is typically installed by machinists, toolmakers, or precision fabricators working on CNC machines or benchtop drill presses.

This micro drill bit is suited for applications requiring small, precise holes in materials such as hardened steel, cast iron, aluminum, plastics, and composites. At 38 mm overall length with an 8.4 mm flute length, it is built for controlled chip evacuation in shallow to moderate-depth holes. The straight-cylindrical shank at 2.0 mm diameter seats securely in standard collet chucks or drill chucks sized for miniature tooling. It is commonly used in electronics manufacturing, instrument fabrication, mold and die work, and general precision machining environments.

Key Features

• 1.9 mm cutting diameter with 0.0748 inches decimal equivalent for tight-tolerance hole sizing
• Solid carbide construction for rigidity and extended tool life in hard materials
• 120-degree standard point angle for accurate hole entry and reduced walking
• Bright, uncoated finish maintains precise dimensional tolerances
• Regular spiral flute with right-hand cut for efficient chip evacuation
• Straight-cylindrical 2.0 mm shank compatible with standard miniature collet and drill chucks

Compatibility

Designed for use in CNC machining centers, benchtop drill presses, and hand-held drilling equipment fitted with collet chucks or drill chucks that accept a 2.0 mm straight-cylindrical shank in the miniature tooling series.

Installation Notes

Installation and use of this micro drill bit should be performed by qualified machinists or toolroom technicians familiar with small-diameter carbide tooling. Always ensure the machine spindle is fully stopped and locked before inserting or removing the bit from the chuck. Carbide is brittle at small diameters — avoid lateral loading, interrupted cuts without proper feed control, or excessive runout in the chuck, as these conditions can cause bit breakage. Confirm chuck concentricity and appropriate spindle speed for the material and diameter before beginning the cut.