Accupro A-6100128R Micro Drill Bit 1.28 Mm Solid Carbide

Product Description

The ACCUPRO A-6100128R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. The bit measures 1.28 mm (0.0504 inches) in diameter with a 30 mm overall length and a 10 mm flute length. A 120-degree point angle promotes accurate entry and reduces walking on hard materials. The straight-cylindrical shank measures 1.50 mm in diameter, seating securely in standard collets and chucks. The bright, uncoated finish suits a wide range of base materials without heat-altering coatings. This bit is installed by machinists, tool-and-die professionals, and precision fabricators working in electronics, medical device, and aerospace environments.

This micro drill bit fits miniature-series drilling operations where tight tolerances and small hole diameters are required. The spiral flute with regular helix geometry promotes chip evacuation in shallow-to-moderate depth holes. It is suited for use in CNC machining centers, drill presses, and high-speed hand units when paired with an appropriate collet. Right-hand cutting direction is standard for conventional spindle rotation. Solid carbide construction holds up in harder workpiece materials where high-speed steel tooling loses edge life quickly.

Key Features

• 1.28 mm (0.0504 inch) drill diameter for fine, close-tolerance hole making
• Solid carbide construction for extended tool life in hard and abrasive materials
• 120-degree point angle reduces drill walk and improves entry accuracy
• Spiral flute geometry aids chip evacuation during through and blind hole drilling
• Bright, uncoated finish compatible with a broad range of workpiece materials
• 1.50 mm straight-cylindrical shank for secure collet or chuck retention

Compatibility

Designed for use in miniature-series drilling applications requiring a 1.50 mm straight-cylindrical shank collet or equivalent chuck; verify spindle speed and feed rate recommendations for solid carbide micro tooling before use.

Installation Notes

Installation should be performed by qualified machinists or tooling technicians familiar with micro drill handling. Power down and lock out the machine spindle before seating or removing the bit from the collet. Micro carbide tooling is brittle — avoid side-loading or using the bit as a lever during setup. Confirm runout is within acceptable limits before beginning a cut, as excessive runout accelerates edge chipping at this diameter.