Guhring 9064010012000 Micro Drill Bit 1.2mm Carbide

Product Description

The GUHRING 9064010012000 is a solid carbide micro drill bit designed for precision drilling in demanding metalworking applications. It features a 1.2 mm diameter (0.0472 inch), a 140-degree faceted point, and a TiAlN coating that extends tool life in high-heat cutting environments. The overall length is 52 mm with a flute length of 10.8 mm and a maximum drilling depth of 9.3 mm. The shank diameter measures 3 mm in a straight-cylindrical profile, making it compatible with standard collet and chuck systems. This drill is web-thinned to reduce thrust force at entry and is suited for machinists, tool-and-die shops, and precision fabricators working with tight-tolerance micro-diameter holes.

This drill bit is engineered for use in cast iron, stainless steel, and steel as primary workpiece materials, with secondary suitability for aluminum and titanium alloys. It belongs to the Guhring Series 6400 and 6401 platform, which is designed around high-performance solid carbide tooling for CNC machining centers and precision drilling operations. Typical applications include precision hole drilling in aerospace components, medical device manufacturing, and general metalworking where small-diameter accuracy is critical.

Key Features

• Solid carbide construction with K40 material grade for hardness and wear resistance
• TiAlN coating improves thermal resistance and extends tool life in ferrous and exotic materials
• 140-degree faceted point geometry reduces walking and improves entry accuracy
• Web-thinned design lowers cutting thrust and reduces breakage risk at micro diameters
• Right-hand spiral flute promotes efficient chip evacuation in blind and through holes
• 7xD flute-to-diameter ratio supports deeper drilling relative to drill diameter

Compatibility

Designed for use in Guhring Series 6400 and 6401 tooling systems. Suitable for CNC machining centers and precision drilling setups accepting a 3 mm straight-cylindrical shank. Primary workpiece materials include cast iron, stainless steel, and steel; secondary materials include aluminum and titanium alloy.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with micro-diameter carbide tooling. Carbide drill bits are brittle and require rigid, low-runout spindle setups to prevent breakage — check chuck or collet runout before use. Ensure the machine spindle is fully stopped and locked out before changing tooling. Follow the tool manufacturer and machine OEM guidelines for feed rate and spindle speed when drilling at this diameter, as excessive feed force is the leading cause of micro-drill breakage.