Guhring 9005490048500 Jobber Drill Bit 11 Hss

Product Description

The GUHRING 9005490048500 is a jobber length drill bit in wire gauge size 11, equivalent to 0.1909 inches in decimal diameter. Built from high speed steel with a bright uncoated finish, it features a 130-degree point angle and a parabolic flute geometry that promotes efficient chip evacuation. The overall length is 3-3/8 inches with a flute length of 2-1/16 inches and a straight-cylindrical shank. Manufactured to DIN 338 standards, this is a high-performance bit suited for precision drilling applications in production and maintenance environments. Licensed HVAC techs, machinists, and general trade professionals install bits of this type in standard drill presses and hand drills.

This bit is rated for primary use in aluminum and similar non-ferrous and mixed-material workpieces, corresponding to material codes K, N, and P. Its parabolic flute design with web thinning and a tapered web configuration improves penetration in these materials by reducing cutting resistance and improving chip flow. The Series 549 designation places it in a high-performance jobber category suitable for repetitive production drilling or general-purpose hole-making in light industrial and mechanical service settings. No coolant-through capability is present, making it appropriate for standard dry or flood-coolant external applications.

Key Features

• Wire gauge size 11 with 0.1909 inch decimal diameter and DIN 338 standard compliance
• 130-degree point angle for reduced thrust and improved centering on entry
• Parabolic flute design with web thinning promotes efficient chip removal and reduces heat buildup
• Bright uncoated high speed steel construction suited for aluminum, non-ferrous, and general-purpose drilling
• Straight-cylindrical shank compatible with standard drill chucks without adapters
• Maximum drilling depth of 1.761 inches (44.73 mm) with a 5xD flute-to-diameter ratio

Compatibility

Designed as an OEM-style jobber length drill bit conforming to DIN 338 standards, suitable for use in standard drill chucks accepting a 0.1909 inch straight-cylindrical shank across a range of drill presses, CNC drilling equipment, and hand-held power drills.

Installation Notes

This bit is installed by machinists, maintenance technicians, or trade professionals using any drill press, CNC machine, or hand drill with a compatible chuck size. Secure the shank firmly in the chuck before operation and verify drill speed is appropriate for the workpiece material. Inspect the cutting edges for wear before each use, as a dull bit increases heat and can damage the workpiece or shorten bit life. No special tooling or certifications are required for installation, but operators should follow applicable shop safety standards and wear appropriate eye protection.