Accupro A-6100142R Micro Drill Bit 1.42 Mm Solid Carbide

Product Description

The ACCUPRO A-6100142R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. Built from solid carbide throughout, it delivers the rigidity and wear resistance required when drilling small-diameter holes in hard or abrasive materials. The bit measures 1.42 mm (0.0559 inches) in diameter with a 120-degree point angle and a 30 mm overall length. A spiral, regular-helix flute promotes chip evacuation during the cut. Right-hand cutting direction and a straight-cylindrical shank make it compatible with standard collet and chuck setups found on CNC machining centers, drill presses, and precision hand tools.

This miniature series drill bit is suited for machining applications that require consistent hole geometry at sub-2 mm diameters. Typical use cases include printed circuit board fabrication, watch and instrument components, aerospace detail parts, and medical device manufacturing. The uncoated bright finish keeps the cutting edge sharp and consistent across a range of non-ferrous metals, plastics, composites, and light alloys. No coolant-through capability means it is intended for surface-applied coolant or dry cutting at appropriate feed and speed parameters.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard or abrasive materials
• 1.42 mm (0.0559 inch) drill diameter with 120-degree standard point angle
• Spiral regular-helix flute with 11.20 mm flute length for consistent chip evacuation
• Right-hand cut with straight-cylindrical shank for compatibility with standard collets and chucks
• Bright/uncoated finish maintains edge integrity across non-ferrous metals, plastics, and composites
• 30 mm overall length in a compact miniature series profile

Compatibility

Designed as an OEM-style replacement or direct-use micro drill bit for precision machining setups requiring a 1.42 mm diameter solid carbide bit with a straight-cylindrical shank and 1.50 mm shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists familiar with micro-diameter tooling. Secure the straight-cylindrical shank firmly in a precision collet or drill chuck rated for the shank diameter before operation. Power down and lock out the spindle before inserting or removing the bit. Avoid side-loading or deflection during drilling, as solid carbide micro bits are brittle and will fracture if subjected to lateral force.