Accupro A-6100068R Micro Drill Bit 0.68 Mm Solid Carbide

Product Description

The ACCUPRO A-6100068R is a solid carbide micro drill bit designed for precision drilling in miniature and tight-tolerance applications. At 0.68 mm in diameter (0.0268 inches), it features a 120-degree standard point angle and a spiral flute geometry that promotes clean chip evacuation during cutting. The straight-cylindrical shank measures 1.50 mm in diameter and seats securely in standard collet-style chucks. With an overall length of 30 mm, this bit is suited for benchtop drill presses, CNC machining centers, and precision hand drilling fixtures. It ships in a bright, uncoated finish with no coolant-through capability. Installation and use are appropriate for machinists, toolmakers, and precision fabrication technicians.

This micro drill bit is used in applications requiring fine-diameter holes in printed circuit boards, watch components, instrument housings, medical device parts, and other miniature workpieces where dimensional accuracy is critical. The miniature series designation indicates suitability for small-scale drilling operations in both production and prototype environments. Right-hand cutting direction is standard for conventional spindle rotation. The solid carbide construction provides rigidity and wear resistance at small diameters where high-speed steel bits are prone to flex and breakage.

Key Features

• 0.68 mm diameter with 120-degree standard point angle for accurate entry and reduced walking
• Solid carbide construction for rigidity and extended tool life at micro diameters
• Spiral flute design promotes chip evacuation in deep or blind holes
• Bright, uncoated finish — compatible with a wide range of workpiece materials
• Straight-cylindrical shank (1.50 mm) for secure seating in collet chucks
• Right-hand cut with regular spiral for use with conventional clockwise spindle rotation

Compatibility

Designed as an OEM-style miniature drill bit for use in collet-style chucks and precision drill fixtures accepting a 1.50 mm straight-cylindrical shank.

Installation Notes

Installation should be performed by a qualified machinist or toolmaker familiar with micro-diameter tooling. Secure the shank fully in a precision collet to minimize runout, which is critical at sub-millimeter diameters. Power down and lock out the machine spindle before inserting or removing the bit. Avoid applying side load or using the bit as a reamer, as solid carbide micro bits are brittle and will fracture under lateral stress.