Accupro A-6100048R Micro Drill Bit 0.48 Mm Solid Carbide

Product Description

The ACCUPRO A-6100048R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. Built from solid carbide throughout, it delivers the rigidity and edge retention required when working in tight tolerances. The bit features a 120-degree point angle, a spiral flute geometry, and a bright uncoated finish. The overall length is 25 mm with a flute length of 3.60 mm and a straight-cylindrical shank diameter of 1.00 mm. Right-hand cutting direction is standard. This bit is part of the Miniature series and is suited for machinists, toolmakers, and precision fabricators working with small-bore requirements.

This micro drill bit is used in precision machining environments where hole diameters in the sub-millimeter range are required. Typical applications include PCB drilling, instrument manufacturing, medical device fabrication, mold making, and watchmaking. The 0.48 mm cutting diameter and solid carbide construction make it appropriate for use in CNC drilling centers, drill presses, and precision hand-held spindles running at high RPM. It is sold individually with a minimum order quantity of 10 units.

Key Features

• 0.48 mm cutting diameter with a decimal inch equivalent of 0.0189 inches for cross-reference convenience
• Solid carbide construction provides hardness and wear resistance for extended tool life in abrasive materials
• 120-degree standard point angle suits a wide range of workpiece materials
• Spiral regular flute geometry promotes chip evacuation in shallow micro-bore applications
• Bright uncoated finish maintains tight dimensional tolerances straight from the manufacturer
• Straight-cylindrical shank at 1.00 mm diameter fits standard micro collets and chucks

Compatibility

Designed as an OEM-style replacement and standard production micro drill bit for precision machining setups that accept straight-cylindrical shank tooling at 1.00 mm shank diameter.

Installation Notes

Installation and use of micro drill bits should be performed by qualified machinists or toolroom personnel familiar with high-speed micro-drilling practices. Before mounting, ensure the spindle, collet, and chuck are clean and free of debris to prevent runout at this diameter. Operate at manufacturer-recommended spindle speeds for the workpiece material and bit diameter, as excessive feed force on sub-millimeter carbide bits will cause breakage. Do not use this bit as a reamer or apply lateral force during drilling.