Accupro A-6100144R Micro Drill Bit 1.44 Mm Solid Carbide

Product Description

The ACCUPRO A-6100144R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance and miniature applications. With a 1.44 mm (0.0567 inch) cutting diameter and a 120-degree drill point angle, this bit delivers accurate entry points and clean hole geometry in small-scale work. The bright, uncoated finish suits a wide range of base materials where coating is not required. At 30.00 mm overall length with an 11.20 mm flute length, it is compact and purpose-built for use in CNC machining centers, micro-drilling fixtures, and precision hand-feed setups. Machinists, tool and die makers, and precision fabricators are the primary installers.

This micro drill bit is suited for small-diameter hole drilling in PCB fabrication, precision machining, watch and instrument manufacturing, medical device production, and other applications where tight dimensional control is critical. The miniature series designation indicates it is engineered for sub-2 mm diameter work. The right-hand cutting direction is standard for conventional CNC and manual drill press operation. The straight-cylindrical shank at 1.50 mm diameter fits standard micro-collet and precision chuck systems used across these industries.

Key Features

• 1.44 mm (0.0567 inch) cutting diameter for tight-tolerance micro-drilling
• Solid carbide construction for rigidity and wear resistance in hard or abrasive materials
• 120-degree standard point angle for accurate, self-centering entry
• Spiral flute, right-hand cut for efficient chip evacuation in conventional drilling setups
• Bright, uncoated finish suitable for non-ferrous metals, plastics, and composite materials
• Straight-cylindrical 1.50 mm shank compatible with standard micro-collet systems

Compatibility

Designed as a miniature-series replacement or standard-stock micro drill bit for use in CNC machining centers, micro-drill presses, and precision fixtures accepting a 1.50 mm straight-cylindrical shank.

Installation Notes

Installation should be performed by a qualified machinist familiar with micro-tooling practices. Secure the shank fully in a precision collet or drill chuck rated for the shank diameter before use. Micro drill bits are brittle at this diameter — avoid side loading, and use appropriate feed rates and spindle speeds for the workpiece material. Inspect the bit for chipping or runout before each use; replace immediately if damage is observed.