Accupro A-6120123R Micro Drill Bit 1.23mm Solid Carbide

Product Description

The ACCUPRO A-6120123R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. Built to a 1.23 mm (0.0484 inch) diameter with a 120-degree point angle and spiral flute geometry, this bit delivers accurate hole entry and consistent chip evacuation in small-diameter work. The straight-cylindrical shank measures 1.50 mm in diameter, making it compatible with standard micro drill chucks and collet systems. At 30 mm overall length with a 6 mm flute length, it fits compact spindles and CNC micro-machining setups. Licensed machinists, tool and die makers, PCB fabricators, and precision machine shops are the primary users of this series.

This bit belongs to ACCUPRO's Miniature series, suited for drilling small-diameter holes in metals, plastics, composites, and circuit board materials where dimensional accuracy is critical. The bright, uncoated carbide surface is appropriate for dry cutting or light mist coolant applications. Right-hand cut geometry is standard for conventional drilling operations. Sold individually (package quantity of 1), this bit is intended for professional shop environments requiring repeatable micro-hole performance.

Key Features

• 1.23 mm (0.0484 inch) drill diameter for precision micro-hole applications
• Solid carbide construction for rigidity and wear resistance in small-diameter drilling
• 120-degree standard point angle for accurate entry and reduced walking
• Spiral flute with regular spiral type promotes efficient chip clearance
• Bright, uncoated finish suitable for dry or minimal-coolant cutting
• Straight-cylindrical shank for secure seating in micro chucks and collets

Compatibility

Designed as a miniature-series replacement drill bit compatible with standard micro drill chucks and CNC spindles accepting a 1.50 mm straight-cylindrical shank.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or toolroom personnel familiar with micro-drilling practices. Ensure the spindle and collet are clean and properly torqued before seating the shank. At sub-2 mm diameters, feed rate and RPM must be carefully matched to material hardness to avoid bit fracture. No coolant-through capability is present on this bit; use external mist or dry cutting only as appropriate for the workpiece material.