Guhring 9064050017000 Micro Drill Bit Wire 51 Solid Carbide

Product Description

The GUHRING 9064050017000 is a solid carbide micro drill bit engineered for precision drilling in demanding metalworking applications. Sized at wire gauge 51 (1.70 mm / 0.0669 inches diameter), it features a 140-degree faceted point and a TiAlN coating that extends tool life under high-heat cutting conditions. The through-coolant design delivers coolant directly to the cutting edge, reducing thermal buildup and improving chip evacuation in deep-hole work. With an overall length of 56 mm and a flute length of 14 mm, this bit operates in the Series 6405 platform and is installed by machinists and tool-and-die professionals working with close-tolerance bore requirements.

This micro drill bit is suited for production and maintenance machining operations where small-diameter, high-precision holes are required. Primary workpiece materials include cast iron, stainless steel, and steel (ISO material codes K, M, P). Secondary applications cover aluminum and titanium alloys (ISO codes N, S). The 5xD flute-to-diameter ratio supports drilling depths up to 11.90 mm. The straight-cylindrical shank at 4.00 mm diameter seats in standard collet chucks and tool holders used on CNC machining centers and precision drill presses.

Key Features

• Solid carbide K40 grade construction for rigidity and wear resistance in hard materials
• TiAlN coating improves heat resistance and extends tool life in dry or near-dry cutting
• Through-coolant capability directs fluid to the cutting zone for improved chip evacuation
• 140-degree faceted point with web thinning reduces thrust force and improves centering
• Right-hand spiral flute with regular helix for consistent chip flow
• Diameter tolerance m7 provides controlled fit for precision bore applications

Compatibility

Designed for use in CNC machining centers and precision drill presses accepting a 4.00 mm straight-cylindrical shank; compatible with cast iron, stainless steel, steel, aluminum, and titanium alloy workpieces as part of the GUHRING Series 6405 micro drill platform.

Installation Notes

Installation is performed by qualified machinists following shop safety protocols. Secure the straight-cylindrical shank fully in a collet chuck or precision tool holder to the specified grip depth before operation. Ensure through-coolant passages in the spindle and holder are clear and that coolant pressure is set per machine specifications before drilling. Inspect the cutting edge for chips or wear before each use, as micro-diameter carbide tools are sensitive to improper handling and side loading.