Guhring 9006590015000 Cobalt Stub Drill Bit 0.0591in

Product Description

The GUHRING 9006590015000 is a cobalt screw machine (stub) length drill bit designed for precision drilling in demanding materials. Built to DIN 1897 specifications, it features a 0.0591-inch diameter with a 130-degree split point and a parabolic flute geometry for efficient chip evacuation. The web-thinned, parallel-web construction reduces thrust and helps maintain accuracy at entry. This bit is suited for machinists, tool-and-die shops, and maintenance technicians who need a short, rigid drill for close-tolerance work in tight clearance environments.

The 9006590015000 is engineered for drilling titanium alloy and similarly tough materials where standard high-speed steel bits lose their edge. Its stub length format provides extra rigidity compared to jobber-length bits, making it well suited for CNC machining centers, drill presses, and screw machine applications where runout and deflection must be minimized. The straight-cylindrical shank fits standard drill chucks without modification. With a maximum drilling depth of 0.266 inches, this bit is intended for shallow, precision bore applications.

Key Features

• Cobalt construction provides heat resistance and edge retention when drilling titanium alloy and hard metals
• 130-degree point angle reduces thrust and improves self-centering on entry
• Parabolic flute profile promotes fast, clean chip evacuation and reduces clogging
• Web-thinned design lowers cutting resistance for more efficient penetration
• Stub length (DIN 1897) gives added rigidity versus jobber-length alternatives
• 2-flute, right-hand cut configuration compatible with standard CNC and manual drilling setups

Compatibility

Designed as an OEM-style replacement or direct substitute for stub length drill bits conforming to DIN 1897 in the 0.0000 to 0.1000-inch diameter range. Part of the GUHRING Series 659 heavy duty drill line.

Installation Notes

Install in a properly sized drill chuck or collet, ensuring the straight-cylindrical shank is fully seated and securely clamped before operation. Power down and de-energize the machine spindle before changing bits. Follow applicable shop safety standards and machine manufacturer guidelines for speeds and feeds when drilling titanium alloy or other hard materials. Coolant through is not supported on this bit; apply external cutting fluid as needed to manage heat.