Guhring 9006220098000 Cobalt Drill Bit Letter W

Product Description

The GUHRING 9006220098000 is a cobalt jobber length drill bit in Letter W size, equal to 0.3858 inches in diameter. It features a 130-degree split point and a parabolic flute geometry designed for faster chip evacuation and reduced cutting forces. The bright, uncoated cobalt construction offers heat resistance suitable for demanding drilling applications in metal fabrication and machining environments. This drill bit is installed and used by machinists, tool-and-die professionals, and maintenance technicians working with ferrous and non-ferrous materials. The straight-cylindrical shank and web-thinned point contribute to accurate entry and stable performance across a range of workpiece materials.

This drill bit is suited for drilling aluminum and similar non-ferrous and ferrous workpiece materials in production and job-shop settings. Its parabolic flute with a 5xD flute-to-diameter ratio supports efficient chip removal in deeper holes. The maximum drilling depth is 2.846 inches. Conforming to DIN 338 standards, the GUHRING Series 622 is a high-performance jobber drill intended for use in drill presses, CNC machining centers, and hand-held power tools where a straight-cylindrical shank is accepted.

Key Features

• Letter W size: 0.3858 inches diameter, DIN 338 standard jobber length
• Cobalt construction with bright uncoated finish for heat and wear resistance
• 130-degree split point for accurate positioning and reduced thrust
• Parabolic flute profile promotes fast chip evacuation and lower cutting forces
• Web-thinned, tapered web configuration for easier penetration on entry
• Right-hand cut, straight-cylindrical shank compatible with standard drill chucks

Compatibility

Designed as a DIN 338 jobber length replacement or production drill for use in standard straight-shank drill chucks on drill presses, CNC machining centers, and power hand tools accepting a 0.3858-inch shank diameter.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance personnel familiar with metal cutting operations. Secure the straight-cylindrical shank firmly in a drill chuck rated for the intended spindle speed before operating. Ensure the machine is at a full stop and in a safe, de-energized state before changing or adjusting the drill bit. Follow shop-specific feeds, speeds, and coolant recommendations for the workpiece material being drilled.