Accupro A-6100197R Micro Drill Bit 1.97mm Solid Carbide

Product Description

The ACCUPRO A-6100197R is a solid carbide micro drill bit designed for precision drilling in miniature and tight-tolerance applications. With a cutting diameter of 1.97 mm (0.0776 inches) and a 120-degree drill point angle, it delivers clean, accurate entry holes in hard and abrasive materials where standard high-speed steel bits fall short. The bright, uncoated finish suits applications where coating buildup or contamination is a concern. An overall length of 38.00 mm and a 2.00 mm straight cylindrical shank make this bit compatible with precision chucks and collet systems used in CNC machining centers, micro-drilling fixtures, and manual precision presses.

This bit is suited for machinists, toolmakers, and precision fabricators working on small-diameter hole applications in metals, composites, and engineered plastics. The miniature series designation indicates it is built for controlled, low-feed drilling environments rather than high-volume production drilling. Typical applications include instrument manufacturing, electronics enclosure fabrication, medical device components, and precision jig work where hole location and diameter accuracy are critical.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• 1.97 mm (0.0776 inches) cutting diameter for tight-tolerance micro holes
• 120-degree standard drill point angle for accurate self-centering entry
• Spiral flute geometry promotes chip evacuation in deep micro holes
• Straight cylindrical shank at 2.00 mm diameter fits standard precision collets and chucks
• Bright, uncoated finish eliminates coating-related dimensional variation

Compatibility

Designed for use in precision CNC machining centers, micro-drilling stations, and manual drill presses equipped with collet chucks or precision Jacobs-style chucks accepting a 2.00 mm straight cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with micro-drill operating parameters. Ensure the spindle and collet are clean and properly torqued before seating the bit to prevent runout that can cause premature breakage at this diameter. Reduce feed rate and spindle speed relative to larger drill diameters as recommended by carbide tooling guidelines for the workpiece material. Solid carbide bits are brittle and should not be used in setups with excessive vibration or lateral loading.