Guhring 9064890020000 Micro Drill Bit 2mm Carbide

Product Description

The GUHRING 9064890020000 is a solid carbide micro drill bit engineered for very small hole drilling in demanding materials. It features a 2.00 mm diameter, a 140-degree faceted point angle, and a web-thinned geometry that reduces entry force and improves centering accuracy. The Perrox coating enhances wear resistance and heat dissipation, making this bit well-suited for prolonged use in hard and abrasive workpiece materials. With an overall length of 61 mm and a flute length of 18.00 mm, the 9064890020000 belongs to GUHRING Series 6489 and is designed for right-hand cutting with a spiral flute configuration. Installation and operation require a compatible precision spindle or drill chuck capable of holding a 4.00 mm straight-cylindrical shank.

This micro drill bit is intended for professionals machining stainless steel, superalloys, and titanium — materials classified under ISO material groups M and S. The 6xD flute-to-diameter ratio supports a maximum drilling depth of 15.00 mm, and the coolant-through design allows internal cutting fluid delivery to extend tool life and clear chips efficiently in blind or deep holes. Typical applications include precision component manufacturing, aerospace part drilling, and medical device fabrication where tight tolerances and small-diameter holes are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• Perrox coating reduces friction and extends tool life in stainless steel and superalloys
• 140-degree faceted point angle with web thinning for accurate entry and reduced thrust force
• Coolant-through capability for internal fluid delivery during deep or blind hole drilling
• Straight-cylindrical 4.00 mm shank for compatibility with standard precision tool holders
• 6xD flute ratio supports drilling depths up to 15.00 mm at 2.00 mm diameter

Compatibility

Designed for use in precision CNC machining centers and drill presses equipped with tool holders accepting a 4.00 mm straight-cylindrical shank. Primary workpiece materials are stainless steel, superalloys, and titanium (ISO material groups M and S).

Installation Notes

This drill bit should be installed and operated by qualified machinists familiar with carbide tooling and precision drilling procedures. Secure the shank fully in a collet or drill chuck rated for the intended spindle speed before operation. Do not exceed the recommended maximum drilling depth of 15.00 mm for this diameter. When using coolant-through capability, verify that the machine spindle and tool holder support internal coolant delivery before connecting fluid supply.