Accupro A-6120169R Micro Drill Bit 1.69mm Solid Carbide

Product Description

The ACCUPRO A-6120169R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. It carries a 1.69 mm (0.0665 inch) diameter, a 120-degree point angle, and a bright, uncoated finish. The straight-cylindrical shank measures 2.00 mm in diameter and seats securely in standard chuck configurations. With a 38.00 mm overall length and a 7.20 mm flute length, this miniature-series bit is suited for machinists, toolmakers, and precision fabricators working with small-diameter hole requirements in hard materials where carbide rigidity is essential.

This bit is applied in precision machining environments including CNC drilling, PCB fabrication, mold and die work, and small-component manufacturing. Its right-hand cut with a regular spiral flute evacuates chips efficiently at small diameters. The miniature-series designation targets applications where standard jobber-length bits are too large or too flexible for the required hole geometry. Installation is performed in milling machines, drill presses, and CNC machining centers equipped with collets or chucks compatible with a 2.00 mm straight-cylindrical shank.

Key Features

• 1.69 mm (0.0665 inch) drill diameter for small-hole precision work
• Solid carbide construction provides rigidity and wear resistance in hard materials
• 120-degree point angle for accurate entry and reduced walking
• 7.20 mm spiral flute length supports chip evacuation at miniature scale
• Bright, uncoated finish compatible with a wide range of cutting fluids and materials
• Right-hand cut with regular spiral flute for standard CNC and manual machine setups

Compatibility

Designed for use in collet chucks and drill chucks accepting a 2.00 mm straight-cylindrical shank, typical of CNC machining centers, benchtop drill presses, and precision drilling fixtures used in miniature-series tooling applications.

Installation Notes

Installation is performed by machinists or toolroom technicians. Secure the straight-cylindrical shank fully in a collet or chuck rated for the 2.00 mm shank diameter before starting the spindle. At miniature diameters, side loading and excessive feed rates are the primary causes of breakage — consult the machine manufacturer's recommended feed and speed parameters for solid carbide micro drills. Coolant-through is not supported on this bit; apply cutting fluid externally as required by the workpiece material.