Guhring 9006220021800 Cobalt Jobber Drill Bit 0.0858 in

Product Description

The GUHRING 9006220021800 is a cobalt jobber length drill bit designed for high-performance drilling in demanding trade and industrial applications. It carries a 0.0858-inch diameter (Wire Size 44), a 130-degree standard point angle, and a parabolic flute geometry that promotes efficient chip evacuation. Built to DIN 338 specifications, this bit features a bright, uncoated finish and a straight-cylindrical shank. It is suited for machinists, maintenance technicians, and fabricators who require consistent, repeatable hole quality in production or field environments.

This drill bit is engineered for use in aluminum and similar non-ferrous and mixed-material workpieces, as indicated by its Primary Workpiece Material Code ratings (K, N, P). The parabolic flute design reduces chip packing during deep drilling, making it well-suited for through-holes and blind holes in sheet stock, structural components, and machined parts. It is sold individually per package, with a minimum order quantity of 10 units, fitting shop restocking and production floor use.

Key Features

• Cobalt construction provides heat resistance and edge retention in abrasive or hard materials
• 130-degree point angle reduces thrust and walking on entry
• Parabolic flute design improves chip flow and reduces clogging in deep-hole drilling
• Web-thinned, tapered web configuration lowers cutting resistance and extends tool life
• Bright, uncoated finish suitable for use with cutting fluids or dry drilling
• Straight-cylindrical shank fits standard 3-jaw drill chucks and collet holders
• Conforms to DIN 338 standard for consistent dimensional tolerances

Compatibility

Designed as a DIN 338-compliant jobber length drill bit for use in standard drill chucks, CNC machining centers, drill presses, and hand drills accepting straight-cylindrical shanks. Primary workpiece compatibility includes aluminum, non-ferrous metals, and plastics (Material Codes K, N, P).

Installation Notes

Secure the straight-cylindrical shank firmly in a properly sized chuck or collet before use, and verify runout is within acceptable tolerance for the application. Use appropriate cutting fluid when drilling non-ferrous metals to prolong cutting edge life and improve hole finish. Ensure spindle speed and feed rate are set per the workpiece material and bit diameter before engaging the cut. Inspect the cutting edges and web area for wear or chipping before each use, and replace when edge integrity is compromised.