Accupro A-6100113R Micro Drill Bit 1.13mm Solid Carbide

Product Description

The ACCUPRO A-6100113R is a solid carbide micro drill bit engineered for precision drilling in tight-tolerance applications. Measuring 1.13 mm (0.0445 inches) in diameter with a 120-degree drill point angle, this bit is built for clean, accurate entry in small-diameter work. The 30.00 mm overall length and 1.50 mm straight-cylindrical shank keep the tool compact and stable in compatible chucks and spindles. The bright/uncoated finish indicates an uncoated carbide substrate, suitable for dry or minimally lubricated cutting in a range of materials. Spiral fluting with a regular helix promotes chip evacuation during the drilling cycle.

This micro drill bit is designed for use in precision machining environments where small-diameter holes are required with high dimensional accuracy. Typical applications include PCB drilling, instrument manufacturing, mold and die work, and other miniature fabrication tasks. It is suited for use in CNC machining centers, drill presses, and rotary tools capable of holding a 1.50 mm straight shank. Right-hand cutting direction is standard for conventional spindle rotation setups. The miniature series designation indicates this bit is purpose-built for small-scale, detail-oriented drilling operations.

Key Features

• 1.13 mm (0.0445 inches) cutting diameter for precise small-hole drilling
• Solid carbide construction provides rigidity and wear resistance in hard or abrasive materials
• 120-degree drill point angle for standard entry geometry
• 30.00 mm overall length with 9.00 mm flute length for compact reach
• Spiral flute, regular helix promotes chip clearance during drilling
• Bright/uncoated finish — no coating buildup risk on critical diameter tolerances

Compatibility

Designed for use with tool holders and chucks accepting a 1.50 mm straight-cylindrical shank, as found on CNC machining centers and precision drill presses configured for miniature tooling.

Installation Notes

Installation and use should be performed by qualified machinists familiar with micro tooling practices. Ensure the spindle and chuck are clean and properly seated before securing the shank to prevent runout. Micro carbide tooling is brittle — avoid side loading, interrupted cuts without proper feed rate management, or clamping directly on the fluted section. Follow machine manufacturer feed and speed recommendations for the workpiece material and tool diameter.