Guhring 9055110035700 Carbide Jobber Drill Bit 9/64

Product Description

The GUHRING 9055110035700 is a solid submicron carbide jobber-length drill bit designed for high-performance drilling in demanding materials. Built to DIN 6537L standards, it features a 140-degree split-point (SU) tip geometry for self-centering entry without a pilot hole, reducing setup time in production environments. The FIREX coating extends tool life when drilling cast iron and steel by reducing heat buildup and friction at the cutting edge. At 66 mm overall length with a 28 mm flute length, this is a compact, rigid tool suited to CNC machining centers and precision drill presses. Coolant-through capability supports high-feed-rate applications where chip evacuation and heat control are critical.

This drill bit is intended for professional use in metalworking applications where accuracy and tool longevity matter. Primary workpiece materials are cast iron and steel, corresponding to ISO material groups K and P. The 5xD flute-to-diameter ratio and web-thinned, tapered web configuration make it well suited to deep-hole drilling relative to its diameter, particularly on production floors or job shops running tight-tolerance components. It is sold individually and is a direct fit for Series 5511 toolholders with a straight-cylindrical shank.

Key Features

• Submicron solid carbide construction for rigidity and wear resistance in ferrous materials
• FIREX coating reduces friction and extends tool life in cast iron and steel
• 140-degree SU self-centering point eliminates the need for a center drill or pilot hole
• Coolant-through design for effective chip evacuation and heat control at depth
• Web-thinned, tapered web configuration reduces cutting force and improves chip flow
• Conforms to DIN 6535 and DIN 6537L standards for consistent dimensional accuracy

Compatibility

Designed for use in CNC machining centers, drill presses, and production drilling applications targeting cast iron and steel workpieces (ISO material groups K and P). Compatible with Series 5511 tooling. Straight-cylindrical shank fits standard ER collet chucks and drill chucks sized for a 0.2362-inch shank diameter.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine controls locked out. Confirm collet chuck or toolholder bore matches the 0.2362-inch shank diameter before seating the bit. When using coolant-through capability, verify that the machine spindle and toolholder are configured to deliver internal coolant at the appropriate pressure. Do not exceed the maximum drilling depth of 0.892 inches (22.65 mm) without retracting to clear chips.