Accupro A-6120120R Micro Drill Bit 1.2 Mm Solid Carbide

Product Description

The ACCUPRO A-6120120R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. Built to miniature-series standards, it features a 1.2 mm cutting diameter (0.0472 inches), a 120-degree point angle, and a spiral flute geometry that promotes efficient chip evacuation in tight bores. The straight-cylindrical shank measures 1.5 mm in diameter, allowing secure chuck engagement in CNC machining centers, drill presses, and precision hand tools. This bit is supplied in a bright, uncoated finish and is suited for machinists, toolmakers, and precision fabricators working in high-tolerance environments.

This micro drill bit is intended for small-hole drilling operations where dimensional accuracy is critical. The 30 mm overall length and 6 mm flute length make it appropriate for shallow-to-moderate depth bores in materials where carbide hardness delivers clean entry and exit geometry. Typical applications include printed circuit board work, instrument components, medical device parts, and other precision machined details requiring sub-2 mm hole diameters. Right-hand cutting direction suits standard spindle rotation on conventional machine tools.

Key Features

• Solid carbide construction provides rigidity and wear resistance in hard or abrasive materials
• 1.2 mm cutting diameter (0.0472 inches) for sub-2 mm precision hole work
• 120-degree standard point angle for accurate starting and reduced walking
• Spiral flute with regular helix promotes chip clearance in miniature bores
• Bright, uncoated finish suitable for a wide range of workpiece materials
• Straight-cylindrical shank at 1.5 mm diameter for broad chuck compatibility

Compatibility

Designed as an OEM-style miniature series replacement drill bit compatible with standard straight-shank collets and chucks accepting 1.5 mm shank diameters on CNC machining centers, drill presses, and precision benchtop tools.

Installation Notes

This bit should be installed by a qualified machinist or toolroom technician familiar with micro-diameter tooling. Ensure the machine spindle is fully stopped and the chuck is clean and free of debris before seating the shank. Micro carbide tooling is brittle and susceptible to breakage under side loading or excessive feed rates; follow machine manufacturer feed and speed guidelines for 1.2 mm carbide drills. Inspect the cutting edge under magnification before use to confirm it is free of chipping.