Accupro A-6100114R Micro Drill Bit 1.14 Mm Solid Carbide

Product Description

The ACCUPRO A-6100114R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. With a 1.14 mm (0.0449 inch) diameter, a 120-degree point angle, and a bright uncoated finish, this bit delivers clean entry and accurate hole positioning in small-diameter work. The straight-cylindrical shank measures 1.50 mm in diameter, and the overall length is 30 mm with a 9 mm flute length. Right-hand spiral flute geometry clears chips efficiently during the cut. Solid carbide construction provides the rigidity and wear resistance needed for consistent results in hard or abrasive materials.

This miniature drill bit is suited for precision machining tasks including PCB drilling, instrument components, medical device parts, and fine mechanical assemblies. It is used in CNC machining centers, drill presses, and high-speed spindles where runout control and bit concentricity are critical. The small diameter and standard point type make it appropriate for through-hole and blind-hole work in metal, composite, and plastic substrates.

Key Features

• 1.14 mm diameter with 0.0449 inch decimal equivalent for tight-tolerance hole sizing
• Solid carbide construction for rigidity and wear resistance in demanding materials
• 120-degree standard point angle for accurate drill entry and reduced walking
• Bright uncoated finish compatible with a wide range of materials
• Right-hand spiral flute with regular spiral type for efficient chip evacuation
• Straight-cylindrical shank at 1.50 mm diameter for secure collet or chuck retention

Compatibility

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

Installation Notes

Installation of micro drill bits should be performed by a qualified machinist or tooling technician. Ensure the spindle and collet are clean and free of debris before seating the shank to maintain concentricity and minimize runout. Use the lowest feed rate appropriate for the material to avoid bit deflection or breakage at this diameter. Always bring the spindle to a full stop before changing or inspecting the bit.