Accupro A-6120145R Micro Drill Bit 1.45 Mm Solid Carbide

Product Description

The ACCUPRO A-6120145R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. It measures 1.45 mm in diameter (0.0571 inches) with an overall length of 30 mm and a flute length of 6.70 mm. The 120-degree point angle and spiral flute geometry promote accurate hole entry and efficient chip evacuation. The bright, uncoated finish keeps the substrate exposed, which suits applications where coating adhesion or contamination is a concern. This bit is used by machinists, tool-and-die makers, and precision fabricators working on close-tolerance parts in metal, composite, or similar materials.

The A-6120145R belongs to the Miniature series and is suited for high-precision drilling operations where tight hole tolerances are required. The straight-cylindrical shank at 1.50 mm diameter fits standard collet chucks and micro drill chucks used in CNC machining centers, drill presses, and precision hand tools. Right-hand cut orientation matches conventional spindle rotation. This bit is appropriate for production environments handling small-diameter through-holes or pilot holes in tight workspaces.

Key Features

• 1.45 mm drill diameter (0.0571 inches) for precise micro-bore work
• Solid carbide construction for rigidity and wear resistance in hard materials
• 120-degree point angle for accurate hole entry and reduced walking
• Spiral flute design promotes chip evacuation in deep or blind holes
• Bright uncoated finish, no coating interference with tight tolerances
• Straight-cylindrical 1.50 mm shank fits standard micro collet chucks

Compatibility

Designed as an OEM-style replacement or direct-use micro drill bit compatible with collet chucks and micro drill holders accepting a 1.50 mm straight-cylindrical shank in CNC and manual precision drilling setups.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with micro-diameter cutting tools. Secure the shank fully in a properly sized collet or drill chuck before operation and verify runout before cutting. At micro diameters, excessive feed rate or lateral force will cause bit breakage. Follow machine manufacturer guidelines for spindle speed and feed recommendations appropriate to the workpiece material.