Accupro A-6120114R Micro Drill Bit 1.14 Mm Solid Carbide

Product Description

The ACCUPRO A-6120114R is a miniature series solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. Built from solid carbide throughout, this bit delivers the rigidity and wear resistance required when working with small-diameter hole work where high-speed steel tooling falls short. It features a 120-degree point angle for accurate entry and reduced walking, a spiral flute geometry for efficient chip evacuation, and a right-hand cutting direction. At 1.14 mm in diameter (0.0449 inches), it is suited for fine, controlled drilling passes in dense or hard materials where dimensional accuracy is critical.

This micro drill bit is used in precision machining, electronics manufacturing, instrument fabrication, and other applications that demand small-diameter, clean-entry holes. The straight-cylindrical shank measures 1.50 mm and seats securely in collet-style or precision drill chucks. The 30 mm overall length keeps the tool compact and reduces deflection during use. It is typically operated by machinists, toolmakers, or precision fabricators working on CNC machines, drill presses, or high-speed spindles where runout is controlled and feeds and speeds are dialed in for carbide tooling.

Key Features

• Solid carbide construction for rigidity and extended tool life in hard materials
• 120-degree point angle for accurate, self-starting entry with minimal walking
• Spiral flute geometry promotes efficient chip clearing in small-diameter bores
• Bright uncoated finish suitable for a wide range of base materials
• Right-hand cut with regular spiral for standard CNC and manual spindle setups
• Straight-cylindrical shank for straightforward collet or chuck mounting

Compatibility

Designed as an OEM-style precision micro drill bit for use in standard collet chucks and precision drill fixtures accepting a 1.50 mm straight-cylindrical shank.

Installation Notes

This bit is installed by a machinist or toolmaker into a compatible collet or precision drill chuck rated for small-diameter carbide tooling. Ensure the spindle and chuck are clean and free of runout before seating the shank. Carbide is brittle — do not use this bit in setups with excessive vibration, side load, or without appropriate feeds and speeds for the material being drilled. Power down and lock out the spindle before changing tooling.