Guhring 9006580032500 Cobalt Drill Bit 3.25 Mm Series 658

Product Description

The GUHRING 9006580032500 is a cobalt jobber length drill bit designed for high-performance drilling in demanding materials. It carries a titanium nitride (TiN) coating that extends tool life by reducing friction and heat buildup at the cutting edge. The drill measures 3.25 mm (0.1280 inches) in diameter with an overall length of 65.00 mm (approximately 2-9/16 inches). A 130-degree split point and parabolic flute geometry improve chip evacuation and reduce thrust load, making this bit suitable for production environments where tool life and hole quality matter. Right-hand cut with a straight-cylindrical shank for direct chuck mounting.

This drill bit is intended for use in cast iron and steel workpieces, covering a broad range of ferrous machining applications. The parabolic flute profile supports deeper drilling relative to diameter, with a maximum recommended drilling depth of 31.13 mm (1.23 inches). It fits standard drill chucks in CNC machining centers, drill presses, and hand-held power tools. Series 658 is a production-grade line conforming to DIN 338, making it appropriate for shops that require dimensional consistency across tool changes in close-tolerance work.

Key Features

• Cobalt construction with TiN coating for extended cutting life in ferrous materials
• 130-degree point angle reduces thrust and improves self-centering on entry
• Parabolic flute geometry accelerates chip removal and reduces packing in deep holes
• Web-thinned, tapered web design lowers cutting resistance at the tip
• Straight-cylindrical shank (0.1280 inches) fits standard drill chucks without adapters
• Conforms to DIN 338 for consistent dimensional tolerancing across production runs

Compatibility

Designed as an OEM-style replacement or production drill conforming to DIN 338 standards, suitable for use in standard drill chucks accepting a 0.1280-inch straight-cylindrical shank across CNC and manual drilling equipment.

Installation Notes

Installation and use of this drill bit should be performed by machinists or qualified trade professionals familiar with cutting tool setup and machine operation. Secure the shank fully in the chuck jaws and verify runout before beginning a drilling cycle. Power down and de-energize the machine spindle before changing tooling. Do not exceed the recommended drilling depth of 1.23 inches in a single pass without withdrawing to clear chips, particularly in blind-hole applications.