Guhring 9003050032600 Cobalt Jobber Drill No 30

Product Description

The GUHRING 9003050032600 is a cobalt jobber-length drill bit in wire gauge size No. 30, equivalent to 0.1285 inches in decimal diameter. Built to DIN 338 standards, it features a 118-degree standard point angle with web thinning for easier penetration and reduced thrust. The oxide coating provides baseline lubricity and surface protection during drilling. At 65.00 mm overall length with a 36.00 mm flute length, this bit is sized for general-purpose drilling applications where a compact, straight-shank tool is required. It is intended for use by machinists, maintenance technicians, and trade professionals working with ferrous metals.

This drill bit is suited for drilling cast iron and steel in both production and maintenance environments. The cobalt steel construction handles work-hardening materials and elevated cutting temperatures better than standard high-speed steel. The straight-cylindrical shank is compatible with standard drill chucks and collet holders. With a maximum drilling depth of 1.225 inches (31.11 mm) and a 5xD flute-to-diameter ratio, it fits benchtop drill presses, CNC machining centers, and handheld power drills used in fabrication, HVAC rough-in, and electrical trade work requiring precise small-diameter holes in steel structure.

Key Features

• Cobalt steel construction for drilling cast iron and steel at elevated temperatures
• 118-degree standard point with web thinning reduces entry thrust and improves centering
• Oxide coating provides surface lubricity and corrosion resistance during storage and use
• Straight-cylindrical shank fits standard chucks and collet holders without modification
• Built to DIN 338 specification for consistent dimensional tolerances across the series
• Right-hand spiral flute with regular spiral type for efficient chip evacuation

Compatibility

Designed for use in standard drill chucks and collet holders accepting a 0.1283-inch straight-cylindrical shank. Rated for primary workpiece materials cast iron (material code K) and steel (material code P) per DIN 338 Series 305 classification.

Installation Notes

This bit is installed and operated by machinists and trade professionals using drill presses, hand drills, or CNC equipment. Secure the shank fully in the chuck or collet before use and verify runout is within acceptable limits for the application. Always wear appropriate eye protection and secure the workpiece before drilling. Do not exceed the recommended maximum drilling depth of 1.225 inches in a single pass without clearing chips from the flutes.