Accupro A-6100039R Micro Drill Bit 0.0154 in Solid Carbide

Product Description

The ACCUPRO A-6100039R is a solid carbide micro drill bit engineered for precision drilling in miniature applications. With a 0.0154-inch diameter and a 120-degree drill point angle, this bit is designed to produce accurate, clean holes in hard and abrasive materials. The bright/uncoated finish suits general-purpose use where coating is not required. At 25.00 mm overall length with a 3.60 mm flute length and a 1.00 mm straight cylindrical shank, this drill is built for controlled, high-precision work in tight tolerances. Right-hand cutting direction and a standard point type make it straightforward to run on conventional CNC or bench drilling equipment.

This drill bit is suited for precision machining environments including electronics manufacturing, medical device fabrication, instrument making, and other applications requiring extremely small-diameter holes. The miniature series designation indicates it is intended for small-scale, high-accuracy drilling where standard jobber-length bits are too large or too flexible. It is typically used by machinists and toolroom technicians running CNC mills, drill presses, or micro-drilling machines on materials such as hardened steel, stainless, aluminum, and engineered plastics.

Key Features

• 0.0154-inch diameter for precision micro-hole applications
• Solid carbide construction for rigidity and wear resistance in hard materials
• 120-degree drill point angle for standard through-hole and blind-hole drilling
• Bright/uncoated finish for general-purpose use without coating-related diameter tolerance concerns
• Spiral flute, regular spiral type for efficient chip evacuation at small diameters
• 1.00 mm straight cylindrical shank for compatibility with standard micro-drill chucks and collets

Compatibility

Designed as an OEM-style miniature series micro drill bit for use in standard straight-shank micro-drill chucks and collets accepting a 1.00 mm shank diameter.

Installation Notes

Micro drill bits at this diameter are extremely fragile and must be installed with proper chuck alignment to avoid runout-induced breakage. Ensure the spindle and chuck are clean and free of debris before seating the shank. Use recommended feed rates and spindle speeds for solid carbide micro tooling in the workpiece material being drilled. Avoid side loading or manual flex on the bit, as carbide has low tensile flexibility and will snap without warning under lateral force.