Accupro A-6100115R Micro Drill Bit 1.15 Mm Solid Carbide

Product Description

The ACCUPRO A-6100115R is a solid carbide micro drill bit designed for precision drilling in miniature and tight-tolerance applications. With a diameter of 1.15 mm (0.0453 inches) and a 120-degree drill point angle, this bit delivers clean, accurate entry points in hard and abrasive materials where standard high-speed steel tooling falls short. The bright/uncoated finish keeps the carbide substrate exposed for maximum compatibility with a wide range of workpiece materials. At 30.00 mm overall length, it fits standard miniature toolholding setups. Right-hand cutting direction and a straight-cylindrical shank make setup straightforward for machinists and toolroom technicians.

This micro drill bit is suited for precision machining environments including CNC machining centers, drill presses, and manual spindles where small-diameter hole generation is required. Typical applications include PCB drilling, instrument components, medical device parts, aerospace detail work, and fine mechanical assemblies. The miniature series designation indicates suitability for sub-2 mm diameter work where rigidity and concentricity of the tool are critical to hole quality and positional accuracy.

Key Features

• 1.15 mm (0.0453 inch) diameter for precision micro-hole applications
• Solid carbide construction provides rigidity and wear resistance in hard materials
• 120-degree point angle suited for standard drilling entry without pre-spotting on most setups
• Bright/uncoated finish compatible with a broad range of workpiece materials and cutting fluids
• Straight-cylindrical shank at 1.50 mm diameter fits standard miniature collets and chucks
• Right-hand spiral flutes with regular spiral type for efficient chip evacuation in short-flute micro drilling

Compatibility

Designed as an OEM-style replacement and standard miniature series micro drill bit for use in toolholding systems accepting a 1.50 mm straight-cylindrical shank.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, powered-down state. Micro drill bits at this diameter are extremely fragile — confirm runout on the collet or chuck before operation, as even minor concentricity errors significantly increase breakage risk. Do not apply excessive feed pressure; consult your machine manufacturer's recommended feeds and speeds for solid carbide micro tooling in the specific workpiece material. Coolant-through is not supported on this bit; flood coolant or misting may be used externally if appropriate for the application.