Guhring 9055200134900 Cobalt Stub Drill Bit 17/32 in

Product Description

The GUHRING 9055200134900 is a cobalt screw machine length drill bit designed for high-performance metal cutting in professional machining environments. Built to DIN 1897 standards, this stub-length bit features a 17/32 inch diameter, a 118-degree four-facet split point, and a regular spiral flute configuration with web thinning for reduced thrust and cleaner entry. The straight-cylindrical shank provides secure chuck engagement. It is suited for production drilling, job shop work, and maintenance applications where rigidity and dimensional accuracy matter.

This drill bit is designed for drilling aluminum and similar workpiece materials in stub-length applications where overhang must be minimized and rigidity is critical. The 3xD flute-to-diameter ratio and 54 mm flute length support controlled chip evacuation in shallow-to-moderate depth holes up to 1.33 inches. The Series 5520 platform is a recognized Guhring line used by machinists, tool-and-die shops, and MRO operations requiring consistent dimensional tolerance across production runs.

Key Features

• Cobalt tool material for improved heat resistance and tool life in demanding cuts
• Four facet split point with web thinning reduces entry thrust and improves centering
• DIN 1897 stub length design maximizes rigidity and minimizes deflection
• Straight-cylindrical shank fits standard drill chucks without adapters
• Diameter tolerance of +0.000 to -0.027 mm for repeatable, close-tolerance holes
• Tapered web configuration supports chip flow and reduces heat buildup at the cutting edge

Compatibility

Designed as a DIN 1897 stub-length replacement drill bit suitable for standard drill chucks and CNC machining centers accepting a 13.49 mm straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists familiar with cutting tool setup and machine operation. Secure the shank fully in the chuck before operation and verify runout before drilling production parts. Ensure the workpiece is properly fixtured and the machine spindle speed is set to an appropriate surface footage for cobalt tooling in the target material. Do not exceed the maximum drilling depth of 1.33 inches without repositioning or pecking to clear chips.