Guhring 9006220027500 Jobber Drill Bit 2.75mm Cobalt

Product Description

The GUHRING 9006220027500 is a cobalt jobber-length drill bit engineered for high-performance metal drilling applications. Built to DIN 338 standards, this bit measures 2.75 mm (0.1083 inches) in diameter with an overall length of 61.00 mm (approximately 2-13/32 inches) and a parabolic flute design that promotes chip evacuation and reduces heat buildup at the cutting edge. The 130-degree split point and web-thinned tip allow for fast penetration with minimal walking on entry. Licensed HVAC technicians, machinists, and trade professionals working with aluminum and other non-ferrous or ferrous stock will find this bit suited to precision hole-making in tight tolerances. It is installed by hand or in a standard drill press or CNC setup and ships as a single unit.

This drill bit is rated for primary use in aluminum (material code K, N, P) and is a strong fit for fabrication, sheet metal, and general trade shop applications where consistent hole diameter and clean exit are priorities. The parabolic flute geometry at a 5xD flute-to-diameter ratio supports deeper cuts with reduced chip packing. The straight-cylindrical shank at 0.1083 inches fits standard drill chucks without adapters. Series 622 denotes the GUHRING high-performance cobalt line conforming to DIN 338 specification, which governs jobber-length geometry and dimensional tolerances.

Key Features

• Cobalt construction with bright uncoated finish for heat resistance in demanding materials
• Parabolic flute geometry at 5xD ratio for efficient chip removal and reduced clogging
• 130-degree drill point angle with web-thinned tip for fast, accurate starts
• Tapered web configuration adds rigidity and extends cutting edge life
• Right-hand cut with straight-cylindrical shank compatible with standard chucks
• Meets DIN 338 standard with diameter tolerance of -0.014 to 0.000 mm for precise fitment

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for applications requiring a 2.75 mm diameter jobber-length bit conforming to DIN 338. Primary workpiece material codes K, N, and P indicate suitability for aluminum, non-ferrous metals, and general steel.

Installation Notes

This bit is installed by machinists, fabricators, or trade professionals using a hand drill, drill press, or CNC spindle. Secure the straight-cylindrical shank firmly in the chuck before operation and verify chuck runout is within acceptable limits to protect the tight diameter tolerance. Always reduce feed rate when breaking through the back side of the workpiece to prevent bit deflection or workpiece damage. Do not exceed the maximum drilling depth of 28.88 mm (1.137 inches) without retracting to clear chips.