Accupro A-6100038R Micro Drill Bit 0.38 Mm Solid Carbide

Product Description

The ACCUPRO A-6100038R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. At 0.38 mm (0.0150 inch) in diameter, this bit is built for small-bore work where dimensional accuracy is critical. The 120-degree point angle provides a clean entry with reduced walking on hard or brittle materials. A spiral flute geometry promotes efficient chip evacuation throughout the cut. With an overall length of 25 mm and a 1.00 mm straight-cylindrical shank, the bit fits standard micro drill chucks and collet holders. Machinists, PCB fabricators, and precision tooling technicians are the primary users of this series.

This micro drill bit is suited for use in CNC machining centers, micro-drilling fixtures, and bench-top precision drill presses where small-diameter holes are required. It performs in materials including plastics, non-ferrous metals, and similar substrates where carbide tooling is appropriate. The bright, uncoated finish makes it well suited for applications where coating buildup or heat transfer concerns exist. It belongs to the Miniature series, which is sized for work that standard jobber-length bits cannot access cleanly.

Key Features

• 0.38 mm (0.0150 inch) diameter for precision micro-bore applications
• Solid carbide construction for rigidity and wear resistance in small-diameter tooling
• 120-degree standard point angle for accurate entry and reduced drill walk
• Spiral flute with regular spiral type for consistent chip removal
• Bright/uncoated finish — no coating variance affecting hole tolerance
• 1.00 mm straight-cylindrical shank compatible with standard micro collets and chucks

Compatibility

Designed as an OEM-style replacement or direct-use micro drill bit for precision machining applications requiring a 1.00 mm straight-cylindrical shank and 0.38 mm cutting diameter.

Installation Notes

This bit should be installed by a qualified machinist or tooling technician using a compatible micro collet or drill chuck rated for the 1.00 mm shank diameter. Ensure the spindle and workholding are clean and concentric before seating the bit to avoid runout that can snap small-diameter carbide tooling. Power down the machine and zero all axes before tool changes. Avoid lateral side loads during entry, as solid carbide micro bits are brittle and will fracture under bending stress.