Accupro A-6120144R Micro Drill Bit 1.44 Mm Solid Carbide

Product Description

The ACCUPRO A-6120144R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. It measures 1.44 mm (0.0567 inches) in diameter with an overall length of 30 mm and a flute length of 6.70 mm. The 120-degree point angle provides a standard split-point geometry suited for accurate entry and reduced walking on entry. Bright uncoated finish keeps the tool ready for immediate use without additional prep. Machinists, toolmakers, and precision fabricators working with small-bore requirements will find this bit sized for the demands of miniature-series work.

This bit is intended for small-diameter drilling operations in materials where tight tolerances and clean entry are required. The spiral flute design promotes chip evacuation during drilling cycles. The straight-cylindrical shank at 1.50 mm diameter seats in standard collets and drill chucks compatible with miniature tooling. Right-hand cutting direction is standard for conventional CNC and manual drill press setups. This tool is sized for precision instrument manufacturing, electronics fabrication, mold and die work, and similar trades requiring sub-2 mm hole diameters.

Key Features

• 1.44 mm drill diameter with 0.0567-inch decimal equivalent for cross-reference
• Solid carbide construction for rigidity and wear resistance in small-diameter drilling
• 120-degree standard point angle for clean entry and accurate positioning
• Spiral flute geometry aids chip evacuation in blind and through-hole applications
• Bright uncoated finish — no coating buildup on cutting edges
• Straight-cylindrical shank at 1.50 mm for compatibility with standard miniature collets

Compatibility

Designed for use in CNC machining centers, drill presses, and manual spindles equipped with collets or chucks accepting a 1.50 mm straight-cylindrical shank. Suited for miniature-series tooling setups.

Installation Notes

Secure the shank fully within the collet or chuck before initiating spindle rotation. Verify spindle speed and feed rate are appropriate for the workpiece material and drill diameter before running. Inspect the cutting edges for chipping before each use, as carbide micro drills are brittle and sensitive to side loading. Always bring the spindle to a complete stop before changing or adjusting tooling.