Guhring 9064120014000 Micro Drill Bit 0.0551 in Carbide

Product Description

The GUHRING 9064120014000 is a solid carbide micro drill bit engineered for precision drilling in demanding industrial and machining applications. Measuring 0.0551 inches in diameter with a 135-degree faceted point, this bit delivers accurate entry geometry and reduced thrust force at small diameters. The TiAlN coating provides heat resistance and extended tool life in high-speed cutting conditions. A web-thinned design reduces cutting forces further, and through-coolant capability allows direct coolant delivery to the cutting edge for effective chip evacuation and thermal management. This drill is intended for use by machinists and tool-and-die professionals working on precision components.

The 9064120014000 is suited for drilling operations in cast iron, stainless steel, and steel as primary workpiece materials, with secondary suitability for aluminum and titanium alloys. At 0.0551 inches diameter with a 62 mm overall length and 25 mm flute length, it fits applications requiring tight-tolerance micro holes. The Series 6412 designation places it within a product family designed for deep-hole micro drilling, with a flute-to-diameter ratio of 15xD supporting drilling depths up to 23.60 mm. It is well-suited to CNC machining centers and precision drill presses where consistent hole quality and diameter tolerance are critical.

Key Features

• Solid submicron carbide construction for rigidity and wear resistance at micro diameters
• TiAlN coating extends tool life in high-temperature, high-speed cutting environments
• 135-degree faceted point angle reduces thrust and improves entry accuracy
• Through-coolant design delivers coolant directly to the cutting zone for chip control and heat reduction
• Web-thinned geometry reduces cutting forces on entry
• Diameter tolerance to h7 for consistent, tight-tolerance hole production

Compatibility

Designed for use in CNC machining centers and precision drilling equipment capable of accepting a 4 mm straight-cylindrical shank. Primary workpiece materials include cast iron, stainless steel, and steel. Secondary compatible workpiece materials include aluminum and titanium alloys.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with micro-diameter tooling. Ensure the spindle and collet or chuck are clean and properly sized for the 4 mm straight-cylindrical shank before seating the bit. Power down and lock out the machine before changing tooling. Do not exceed the recommended maximum drilling depth of 23.60 mm, and verify through-coolant pressure is within the machine's specified range before running.