Guhring 9006590045000 Cobalt Drill Bit 0.177 in Stub Length

Product Description

The GUHRING 9006590045000 is a cobalt screw machine length (stub length) drill bit engineered for high-performance drilling in demanding materials. Sized at 0.177 inches (wire size 16) with a 130-degree split point, this bit cuts aggressively through titanium alloys and other hard-to-machine workpieces. The parabolic flute geometry promotes efficient chip evacuation and reduces heat buildup in deep-hole applications. Web-thinned construction lowers entry force, and the parallel web configuration maintains rigidity along the full flute length of 0.945 inches. Built to DIN 1897 standards, this is a heavy-duty tool intended for production and maintenance machining environments where tool life and dimensional accuracy are critical.

This drill bit is suited for use in machine shops, MRO facilities, and manufacturing environments where titanium alloys, stainless steels, and other high-strength materials are routinely machined. The stub-length body reduces deflection in short-reach setups, making it well matched to screw machine, CNC lathe, and drill press applications. The straight-cylindrical shank seats securely in standard drill chucks and collet holders. With a maximum drilling depth of 0.679 inches and an overall length of 2.283 inches, this bit fits compact tooling setups where rigidity matters as much as cutting performance.

Key Features

• Cobalt tool material for extended tool life in hard and abrasive workpiece materials including titanium alloy
• 130-degree drill point angle for fast, positive engagement and reduced thrust force
• Parabolic flute geometry promotes chip flow and cooling in interrupted or deep cuts
• Web-thinned, parallel-web construction balances rigidity with reduced entry force
• Stub length body minimizes deflection in short-reach and screw machine setups
• Manufactured to DIN 1897 specification for consistent dimensional tolerances

Compatibility

Designed as a DIN 1897 Series 659 stub-length drill bit with a straight-cylindrical shank; fits standard drill chucks and collet holders accepting 0.177-inch shank diameters. Primary workpiece material rated for titanium alloy per manufacturer specification.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with rotating cutting tools and machine tool safety. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the chuck or collet. Verify shank seating depth and chuck runout before beginning a cut, as excessive runout reduces tool life and hole accuracy. Do not exceed the recommended maximum drilling depth of 0.679 inches per the manufacturer geometry rating.