Guhring 9055110090000 Carbide Jobber Drill Bit 0.3543 in

Product Description

The GUHRING 9055110090000 is a solid carbide jobber length drill bit engineered for precision drilling in demanding industrial and trade applications. Built to DIN 6537L standards, it features a 140-degree split point (SU type) with web thinning for self-centering entry without a pilot hole. The FIREX coating reduces friction and extends tool life in abrasive materials. At 0.3543 inches in diameter and 4.0551 inches overall length, this bit is sized for tight-tolerance work. Coolant-through capability supports high-speed machining operations where heat management is critical. Machinists, toolroom technicians, and CNC operators will find this bit suited to production drilling environments.

This drill bit is designed for use in cast iron and steel workpieces, covering primary material codes K and P. The spiral flute geometry is a regular spiral type with a 5xD flute-to-diameter ratio, giving a flute length of 2.4016 inches and a maximum drilling depth of 1.87 inches. The straight-cylindrical shank measures 0.3937 inches in diameter and 1.6535 inches in length, fitting standard drill chucks and collet holders used in CNC machining centers, drill presses, and manual machine tools.

Key Features

• Solid carbide submicron-grade construction for rigidity and wear resistance in ferrous materials
• FIREX coating for reduced friction and extended service life in cast iron and steel
• 140-degree SU split point with web thinning for self-centering, no pilot hole required
• Coolant-through design supports high-feed, high-speed drilling with active chip and heat control
• Right-hand cut, regular spiral flute for efficient chip evacuation
• Conforms to DIN 6535 and DIN 6537L standards for dimensional consistency

Compatibility

Designed for drilling cast iron and steel workpieces (material codes K and P) in CNC machining centers, drill presses, and manual machine tools equipped with standard chucks or collets accepting a 0.3937-inch straight-cylindrical shank. Fits Series 5511 tooling setups per DIN 6537L specification.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Ensure the machine spindle and chuck are powered down and fully stopped before changing or seating the bit. Verify chuck or collet bore compatibility with the 0.3937-inch shank diameter before clamping. When using coolant-through capability, confirm the machine spindle has active through-spindle coolant supply and that pressure settings are appropriate for the application.