Guhring 9006220034500 Cobalt Jobber Drill Bit 0.1358 in

Product Description

The GUHRING 9006220034500 is a cobalt jobber length drill bit designed for high-performance drilling in demanding production and maintenance environments. Built to DIN 338 standards, it measures 0.1358 inches in diameter (Wire Size 29) with a 130-degree split point for accurate self-starting entry and reduced walking on hard or slick surfaces. The parabolic flute geometry promotes aggressive chip evacuation and reduces heat buildup during prolonged drilling cycles. With a bright, uncoated finish and web-thinned tapered web, this bit delivers consistent performance across a range of workpiece materials. Licensed machinists, tool-and-die technicians, and maintenance mechanics rely on this geometry for repeatable hole quality.

This drill bit is rated for primary use in aluminum and non-ferrous materials, as well as plastics and some ferrous applications consistent with its K, N, and P workpiece material codes under DIN classifications. The straight-cylindrical shank seats cleanly in standard drill chucks, keyless chucks, and collet holders. Typical applications include through-hole drilling, clearance holes, and pilot hole operations in sheet metal fabrication, CNC machining, and bench drill press work. The 2-flute parabolic design handles both hand-fed and machine-fed setups without packing chips in the flutes.

Key Features

• Cobalt construction for elevated heat resistance and wear life versus standard HSS bits
• 130-degree point angle with web-thinned tapered web for self-centering entry and reduced thrust force
• Parabolic flute geometry for fast, clean chip evacuation in deep holes
• Bright uncoated finish compatible with a wide range of cutting fluids and dry drilling
• Straight-cylindrical shank fits standard 3-jaw drill chucks and collet holders without adapters
• DIN 338 specification compliance for consistent dimensional tolerances across production tooling

Compatibility

Designed as a direct-fit replacement for jobber length drill bits conforming to DIN 338 in 0.1358 inch (Wire Size 29) diameter with a straight-cylindrical shank. Compatible with standard drill chucks and collet systems sized for this shank diameter.

Installation Notes

This bit is installed and changed by machinists, tool-and-die technicians, or maintenance mechanics working with drill presses, CNC machining centers, or hand-held power drills. Always bring the spindle to a full stop and isolate machine power before changing tooling. Secure the shank fully into the chuck or collet to the recommended grip depth and verify runout before drilling production parts. Use an appropriate cutting fluid or coolant matched to the workpiece material to maximize tool life.