Guhring 9006220019800 Cobalt Jobber Drill Bit 5/64 in

Product Description

The GUHRING 9006220019800 is a cobalt jobber length drill bit engineered for high-performance metal cutting in demanding shop and field applications. Built to DIN 338 standards, this bit features a 130-degree point angle and a parabolic flute geometry that promotes aggressive chip evacuation and reduced heat buildup at the cutting edge. The 5/64 inch (0.0781 inch) diameter and 1-15/16 inch overall length make it well suited for precision hole work in light-gauge material. The bright, uncoated cobalt construction delivers hardness and heat resistance without the added coating cost, and the web-thinned tapered web reduces entry force on the workpiece.

This bit is designed for right-hand cutting in aluminum and similar non-ferrous and low-alloy materials, consistent with the K, N, and P workpiece material classifications. The straight-cylindrical shank seats securely in standard drill chucks, making it compatible with bench drills, drill presses, and handheld drill motors used in metalworking, HVAC fabrication, electrical work, and light mechanical assembly. The Series 622 designation identifies this as a parabolic-flute variant within the GUHRING cobalt line, intended for applications requiring clean hole finish and reliable chip clearance at higher feed rates.

Key Features

• Cobalt construction with bright uncoated finish for heat resistance and durability
• 130-degree point angle optimized for accurate starting and reduced walking on metal surfaces
• Parabolic flute geometry promotes fast chip evacuation and reduces clogging in deep holes
• Web-thinned tapered web lowers thrust force and extends tool life
• DIN 338 specification ensures dimensional consistency and interchangeability
• Maximum drilling depth of 0.828 inch (21.03 mm) with 5xD flute-to-diameter ratio

Compatibility

Designed for use in aluminum and compatible K, N, and P workpiece materials per DIN 338 classification. Fits standard drill chucks accepting a 5/64 inch straight-cylindrical shank.

Installation Notes

Secure the straight-cylindrical shank firmly in a keyed or keyless chuck before operation and verify runout before drilling. Use appropriate cutting fluid or lubrication when drilling metals to reduce heat and extend bit life. Always wear eye protection and secure the workpiece before starting. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point is damaged to avoid poor hole quality or workpiece damage.