Guhring 9064010015900 Micro Drill Bit 1/16 in Carbide

Product Description

The GUHRING 9064010015900 is a solid carbide micro drill bit engineered for precision drilling in demanding industrial and machining applications. Built to Series 6400 and 6401 standards, it features a 1/16 inch (1.59 mm) diameter, a 140-degree faceted point angle, and a TiAlN coating that extends tool life in high-temperature cutting environments. The overall length is 52 mm with a flute length of 14.40 mm and a maximum drilling depth of 12.50 mm. The straight-cylindrical shank measures 3.00 mm in diameter, making it compatible with standard collet chucks and precision drill holders. Licensed machinists and tooling specialists are the primary users of this drill bit in CNC and manual machining operations.

This drill bit is designed for use in tight-tolerance, small-diameter hole production across a range of workpiece materials. Primary workpiece materials include cast iron, stainless steel, and steel. Secondary materials include aluminum and titanium alloy. The right-hand cutting direction and regular spiral flute geometry make it well suited for through-hole and blind-hole operations in both production and maintenance machining environments. The web-thinned point reduces entry thrust and improves chip evacuation at small diameters.

Key Features

• Solid carbide construction in material grade K40 for rigidity and wear resistance at micro diameters
• TiAlN coating for elevated heat resistance and extended tool life in ferrous and hard materials
• 140-degree faceted point angle reduces walking and improves hole entry accuracy
• Web-thinned geometry lowers axial thrust and aids chip flow in small-diameter drilling
• Flute-by-diameter ratio of 7xD provides reach for depth-to-diameter demanding applications
• Straight-cylindrical shank compatible with standard collet and precision chuck systems

Compatibility

Designed for use in Series 6400 and 6401 tooling applications. Primary workpiece materials are cast iron, stainless steel, and steel (material codes K, M, P). Secondary workpiece materials are aluminum and titanium alloy (material codes N, S). Coolant-through is not supported in this configuration.

Installation Notes

Installation and use should be performed by qualified machinists familiar with micro-diameter tooling. Power down and lock out the spindle before loading or removing the bit from the chuck. Use a precision collet sized to the 3.00 mm shank diameter to prevent runout that can snap micro-diameter carbide tooling. Avoid side loads and interrupted cuts that exceed the rated drilling depth of 12.50 mm, as solid carbide is brittle at small cross-sections.