Guhring 9005490031500 Jobber Drill Bit 3.15mm Hss

Product Description

The GUHRING 9005490031500 is a jobber length drill bit engineered for precision drilling in metal and non-ferrous materials. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this bit measures 3.15 mm (0.1240 inches) in diameter with an overall length of 65 mm (2-9/16 inches). The parabolic flute geometry promotes efficient chip evacuation and reduces cutting force, making it well suited to high-performance applications. A 130-degree point angle and web-thinned tip improve centering accuracy and reduce thrust requirements on entry. This is a right-hand cut bit with a straight-cylindrical shank conforming to DIN 338, designed for machinists, tool and die shops, and maintenance professionals who demand consistent, repeatable hole quality.

This bit is rated for use in aluminum and other non-ferrous metals, as well as a range of general-purpose workpiece materials. Its 5xD flute-to-diameter ratio supports drilling depths up to approximately 31.28 mm (1.231 inches), making it appropriate for through-hole and moderate depth blind-hole work on production lines, machine shops, and maintenance benches. The straight-cylindrical shank fits standard three-jaw drill chucks on bench drill presses, CNC machining centers, and hand-held power drills.

Key Features

• High-speed steel construction with bright, uncoated finish for general-purpose metal drilling
• Parabolic flute design for improved chip evacuation and reduced heat buildup
• 130-degree point angle with web-thinned tip for accurate self-centering entry
• Tapered web configuration reduces cutting resistance through the full drilling depth
• Right-hand cut with straight-cylindrical shank for universal chuck compatibility
• Manufactured to DIN 338 specification for consistent dimensional tolerances

Compatibility

Designed as a DIN 338 Series 549 jobber length drill bit rated for aluminum (K), non-ferrous (N), and general-purpose steel (P) workpiece materials. Fits any standard three-jaw chuck accepting a 0.1240-inch straight-cylindrical shank.

Installation Notes

This bit is installed by machinists and maintenance technicians using standard drill chucks on manual or CNC equipment. Ensure the chuck is fully tightened and the workpiece is securely fixtured before beginning the cut. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting that this bit does not support coolant-through delivery. Inspect the cutting edges for wear before reuse, as a dull HSS bit increases thrust and reduces hole quality.