Guhring 9006590025300 Cobalt Stub Drill Bit 0.0995 in

Product Description

The GUHRING 9006590025300 is a cobalt screw machine length (stub) drill bit designed for demanding metal cutting applications where tool life and hole quality matter. Built to DIN 1897 standards, this heavy-duty bit measures 0.0995 inches in diameter with a two-flute parabolic geometry that promotes efficient chip evacuation and reduces heat buildup at the cutting zone. The 130-degree split point angle and web-thinned tip improve penetration and self-centering, particularly in harder materials. Licensed tradespeople and machinists working on precision drilling operations will find this bit sized and built for production environments.

This drill bit is well suited for drilling titanium alloy and similarly tough workpiece materials where cobalt tooling is the appropriate choice. The stub length format provides added rigidity compared to jobber-length bits, reducing deflection in shallow-hole applications. With a straight-cylindrical shank diameter of 0.0996 inches, it seats directly into standard drill chucks and collet holders. The parabolic flute design with parallel web configuration makes it effective in both manual and CNC drilling setups where consistent chip flow is critical.

Key Features

• Cobalt construction rated for heavy-duty cutting in titanium alloy and hard metals
• 130-degree drill point angle with web-thinned tip for improved centering and reduced thrust
• Parabolic two-flute design promotes chip evacuation in deep relative to diameter drilling
• Stub length format provides superior rigidity versus jobber-length bits
• Straight-cylindrical shank fits standard chucks and collet holders without modification
• Manufactured to DIN 1897 specification for dimensional consistency

Compatibility

Designed for use in standard drill chucks and collet systems accepting a 0.0996-inch straight-cylindrical shank. Primary workpiece material rating is titanium alloy; cobalt grade tooling is also appropriate for stainless steel, hardened steel, and other high-strength alloys in general machining and maintenance applications.

Installation Notes

This bit should be installed by a qualified machinist or trade professional familiar with cutting tool setup and speeds-and-feeds selection for cobalt tooling. Ensure the machine spindle is fully stopped and locked out before changing or seating the bit in the chuck or collet. Do not exceed the maximum drilling depth of 0.402 inches without retracting to clear chips. Use appropriate cutting fluid for the workpiece material to maximize tool life and surface finish.