Guhring 9055110138900 Solid Carbide Jobber Drill 35/64 in

Product Description

The GUHRING 9055110138900 is a solid carbide jobber-length drill bit designed for high-performance drilling in ferrous materials. It measures 35/64 inch (0.5469 inch) in diameter and features a 140-degree, 4-facet point geometry that enables self-centering entry without a center punch. The FIREX multi-layer coating reduces heat buildup and extends tool life in demanding applications. With a regular spiral flute, right-hand cutting direction, and web-thinned construction, this drill is built for productivity on production floors and job sites where accuracy and tool longevity matter. It is installed and used by machinists, toolroom technicians, and maintenance mechanics working with steel, cast iron, and stainless steel.

This drill bit is suited for drilling steel, cast iron, and stainless steel in both production and maintenance machining environments. The 5xD flute-to-diameter ratio and coolant-through design make it effective in CNC machining centers and drill presses where through-spindle or through-tool coolant is available. The straight cylindrical shank fits standard drill chucks and collet holders. Series 5511 follows DIN 6535 and DIN 6537 L standards, making it compatible with tooling setups common in North American and European manufacturing operations.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• FIREX multi-layer proprietary coating reduces friction and extends tool life in steel and stainless steel
• 140-degree 4-facet point provides self-centering entry and reduces thrust force
• Coolant-through design supports through-tool coolant delivery for deep-hole and high-speed applications
• Web-thinned geometry reduces cutting resistance and improves chip evacuation
• Conforms to DIN 6535 and DIN 6537 L standards for consistent fitment in DIN-spec toolholders

Compatibility

Designed for use in steel, cast iron, and stainless steel workpieces. Compatible with standard drill chucks and collet holders accepting a 14 mm straight cylindrical shank. Suitable for CNC machining centers and drill presses with through-spindle coolant capability.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered down and locked out per applicable safety procedures. Ensure the shank is fully seated and clamped to the correct runout specification for the holder in use. Coolant-through drilling requires that the machine spindle coolant system is active and set to the appropriate flow rate for the material and feed rate. Do not exceed the drill's rated maximum drilling depth of 2.211 inches (56.17 mm) without retracting to clear chips.