Accupro A-6120188R Micro Drill Bit 1.88 Mm Solid Carbide

Product Description

The ACCUPRO A-6120188R is a solid carbide micro drill bit designed for precision drilling in miniature and close-tolerance applications. With a cutting diameter of 1.88 mm (0.0740 inches) and a 120-degree drill point angle, it delivers accurate entry and clean hole geometry in hard or abrasive materials where high-speed steel tooling falls short. The straight-cylindrical shank measures 2.00 mm in diameter, and the overall length is 38.00 mm, making it well suited for CNC machining centers, drill presses, and precision hand-held spindles used in tight-clearance work. This bit is sold individually and requires a minimum order of 10 units.

This micro drill bit is intended for machinists, toolmakers, and precision fabricators working in industries such as electronics manufacturing, medical device production, aerospace component work, and instrument fabrication. Its miniature-series designation makes it appropriate for circuit board drilling, small fixture work, and any application requiring repeatable, sub-1/10-inch hole diameters. Right-hand cutting direction suits standard spindle rotation on conventional CNC and manual equipment.

Key Features

• Solid carbide construction provides rigidity and wear resistance in hard materials
• 1.88 mm (0.0740 inches) cutting diameter for precision micro-hole applications
• 120-degree standard point angle for accurate center engagement and reduced walking
• Spiral flute, right-hand cut for standard clockwise spindle operation
• Straight-cylindrical 2.00 mm shank for compatibility with standard collets and chucks
• Bright/uncoated finish — no coating buildup to affect tolerances in micro-diameter work

Compatibility

Designed as an OEM-style miniature series micro drill bit compatible with CNC machining centers, drill presses, and precision spindles accepting a 2.00 mm straight-cylindrical shank.

Installation Notes

Installation and use of this tooling should be performed by qualified machinists familiar with micro-diameter drill bit handling. Ensure the spindle and collet or chuck are clean and properly torqued before operation, as runout at micro diameters significantly affects tool life and hole quality. Power down and lock out the machine before changing tooling. Micro carbide bits are brittle — avoid lateral loading, interrupted cuts without proper feed rate adjustment, and contact with hard surfaces during handling or storage.