Guhring 9005490087300 Jobber Drill 11/32 in Hss Series 549

Product Description

The GUHRING 9005490087300 is a heavy-duty jobber-length drill bit designed for production and maintenance drilling in steel, cast iron, aluminum, and other non-ferrous materials. Manufactured from high speed steel with a bright uncoated finish, it features a 130-degree split point and a parabolic flute geometry that improves chip evacuation and reduces thrust compared to standard jobber configurations. The 11/32 inch (0.3438 inch decimal) diameter and 4-29/32 inch overall length make it a direct fit for standard drill chucks and drilling fixtures. Built to DIN 338 specification, this is a professional-grade tool suited for machine shops, fabrication, and field service work.

This drill is appropriate for use in CNC machining centers, drill presses, and hand-held power drills where consistent hole quality in metallic workpieces is required. The parabolic flute design with web thinning supports a 5xD flute-to-diameter ratio, making it well-suited for moderately deep holes in steel and aluminum without peck drilling. It is commonly selected by machinists, maintenance technicians, and fabricators working to tight tolerances in light industrial and commercial applications.

Key Features

• 11/32 inch (0.3438 inch) diameter with a diameter tolerance of -0.022 to 0.000 mm for precise hole sizing
• 130-degree standard point angle for positive engagement on flat and curved metal surfaces
• Parabolic flute geometry with web thinning promotes efficient chip clearing and reduced heat buildup
• Bright uncoated high speed steel construction — suitable for general-purpose metalworking applications
• Straight cylindrical shank fits standard drill chucks without adapters
• Conforms to DIN 338 specification for consistent dimensional accuracy across production runs

Compatibility

Designed as an OEM-style replacement or direct substitute for DIN 338 jobber drill bits in 11/32 inch diameter. Compatible with primary workpiece materials coded K (cast iron), N (aluminum and non-ferrous), and P (steel) per standard ISO material classification.

Installation Notes

Installation is performed by machinists or maintenance technicians using any standard drill chuck rated for the 11/32 inch straight shank diameter. Ensure the workpiece is securely clamped and the machine spindle is powered down and locked before changing bits. Use appropriate cutting fluid or coolant for steel applications to extend tool life, noting that this drill does not support through-coolant delivery. Follow applicable shop safety standards and machine operating procedures when selecting feed rate and spindle speed for the workpiece material.