Guhring 9005490084300 Jobber Drill Bit Letter Q Hss

Product Description

The GUHRING 9005490084300 is a jobber length drill bit in Letter Q size (0.3319 inches decimal equivalent), manufactured from high-speed steel with a bright uncoated finish. It features a 130-degree split point with web thinning for reduced thrust and cleaner entry, and a parabolic flute geometry that improves chip evacuation at higher feed rates. The overall length is 4-19/32 inches with a 2-15/16 inch flute length. This bit carries a straight-cylindrical shank of 0.3319 inches diameter and is built to DIN 338 standards. It is rated as a high-performance grade drill suitable for demanding production and maintenance drilling applications.

This drill bit is optimized for use in aluminum and other non-ferrous materials as well as plastics, consistent with its K, N, and P workpiece material classifications. The parabolic flute profile supports fast chip removal in through-hole and blind-hole drilling on CNC machining centers, drill presses, and hand-held power equipment where a jobber length reach is appropriate. The 5xD flute-to-diameter ratio accommodates a maximum drilling depth of approximately 2.455 inches in a single pass without pecking in favorable conditions.

Key Features

• Letter Q size with 0.3319 inch decimal diameter for precise hole sizing
• 130-degree point angle with web thinning reduces entry thrust and walking
• Parabolic flute geometry promotes fast chip evacuation in aluminum and plastics
• DIN 338 specification ensures dimensional conformance for interchangeable tooling
• Bright uncoated finish is suitable for use with cutting fluids or dry in compatible materials
• Right-hand cut, straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as an OEM-style jobber length drill bit conforming to DIN 338, suitable for use in any standard drill chuck or collet that accepts a 0.3319 inch straight-cylindrical shank.

Installation Notes

This bit is installed and serviced by machinists, tool-and-die technicians, HVAC fabricators, and general maintenance trades using standard drill chucks or collet holders. Ensure the machine spindle is fully stopped and the chuck is properly tightened before beginning any drilling operation. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole tolerance. Inspect the cutting edges for wear before each use and replace when point geometry is visibly degraded.