Guhring 9064000020000 Micro Drill Bit 2mm Solid Carbide

Product Description

The GUHRING 9064000020000 is a solid carbide micro drill bit designed for precision drilling in demanding metalworking applications. It measures 2 mm in diameter with a 59 mm overall length and features a TiAlN coating that extends tool life in high-heat, high-friction cutting environments. The 140-degree faceted point angle promotes accurate entry and reduces walking on hard materials. A web-thinned, tapered web configuration lowers thrust requirements and improves chip evacuation. This bit is intended for use by machinists and tool-and-die professionals working in CNC drilling cells, manual drill presses, or high-speed machining centers where tight tolerances and small-diameter hole quality are critical.

The 9064000020000 is rated for primary use in cast iron, stainless steel, and steel, and handles secondary workpiece materials including aluminum and titanium alloy. With a flute-by-diameter ratio of 4xD and a 12 mm flute length, it suits shallow-to-moderate depth holes with a maximum drilling depth of 9.60 mm. The straight-cylindrical shank measures 4 mm in diameter, making it compatible with standard collet chucks and drill chucks sized for that shank. Series 6400 denotes GUHRING's micro-diameter solid carbide line built to Material Grade DK460UF for fine-grain carbide consistency.

Key Features

• Solid carbide construction in DK460UF fine-grain material grade for rigidity and edge retention at small diameters
• TiAlN coating provides thermal resistance and reduced friction in ferrous and exotic-alloy cutting
• 140-degree faceted point with web thinning reduces entry thrust and improves centering accuracy
• Straight-cylindrical 4 mm shank seats securely in standard collet and drill chuck systems
• Right-hand spiral flute with regular spiral type promotes consistent chip flow in through and blind holes
• Diameter tolerance of +0.002 to +0.012 mm supports close-tolerance hole specifications

Compatibility

Designed for use in cast iron, stainless steel, and steel as primary workpiece materials, and aluminum and titanium alloy as secondary materials. The 4 mm straight-cylindrical shank fits standard collet chucks and drill chucks accepting that shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists familiar with small-diameter carbide tooling. Carbide micro drills are brittle and susceptible to breakage from side loads, runout, and improper feed rates — always verify spindle runout is within specification before use. Secure the shank fully in a matched collet or chuck and confirm there is no lateral play. Do not use this bit in applications requiring coolant-through delivery, as this series does not support internal coolant.