Guhring 9005520049200 Stub Drill Bit 0.1935 in Hss

Product Description

The GUHRING 9005520049200 is a screw machine length (stub) drill bit designed for precision drilling in metalworking and machining applications. Built from high speed steel with a bright uncoated finish, this bit features a parabolic flute geometry and a web-thinned parallel web configuration that promotes efficient chip evacuation and reduces thrust during drilling. The 130-degree split point engages material quickly and resists walking at entry. At 2-7/16 inches overall length with a 1-1/32-inch flute length, the compact stub profile provides added rigidity compared to jobber-length drills, making it a reliable choice for production and repetitive drilling work.

This drill bit is rated as a high performance grade tool and conforms to DIN 1897 specifications. It is well suited for drilling aluminum as its primary workpiece material, and the parabolic flute design handles the gummy chip characteristics of aluminum effectively. The straight cylindrical shank seats securely in standard drill chucks and quick-change tooling systems used on CNC machining centers, drill presses, and manual lathes. Maximum drilling depth is 0.733 inches at a flute-to-diameter ratio of 3xD. Machinists, tool-and-die makers, and production floor technicians are the typical users of this type of tooling.

Key Features

• Parabolic flute geometry with web thinning for reduced cutting force and improved chip flow
• 130-degree drill point angle for fast engagement and reduced walking on entry
• Stub length body provides greater rigidity than jobber-length alternatives
• High speed steel construction suitable for aluminum and similar non-ferrous materials
• Bright uncoated finish maintains sharp edge geometry out of the box
• Conforms to DIN 1897 standard for consistent dimensional accuracy

Compatibility

Designed as an OEM-style replacement or direct-use drill bit conforming to DIN 1897 stub length standards, compatible with standard straight-shank drill chucks and collet systems accepting a 0.1935-inch diameter shank.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or metalworking technicians. Secure the straight cylindrical shank fully in the chuck or collet before operation and verify runout is within acceptable limits before cutting. Always power down and lock out the machine before changing tooling. Use appropriate cutting fluid or coolant when drilling to extend tool life, even though this bit does not have through-coolant capability.