Guhring 9055110055600 Carbide Drill Bit 7/32 in Firex

Product Description

The GUHRING 9055110055600 is a jobber-length, solid carbide drill bit designed for precision drilling in ferrous metals. Built to DIN 6537L standards, it features a 140-degree split point (SU type) with web thinning for self-centering entry without a center punch. The FIREX coating extends tool life in abrasive and high-heat applications. The bit has an overall length of 3.228 inches and a flute length of 1.732 inches, with a straight-cylindrical shank diameter of 0.2362 inches. It is sized at 7/32 inch (0.2188 inches) and is suited for installation by machinists and tool-and-die professionals working in production or maintenance environments.

This drill bit is engineered for drilling cast iron and steel (material codes K and P). The 5xD flute-by-diameter ratio and coolant-through design make it well matched to CNC machining centers and drill presses where through-tool coolant is available. The regular spiral flute and right-hand cut geometry are standard for conventional drilling operations. The Series 5511 is a DIN 6537L long-series submicron carbide line intended for production drilling where tight tolerances and extended tool life are required.

Key Features

• 140-degree SU split point with web thinning for self-centering entry
• Solid submicron carbide construction for rigidity and wear resistance in ferrous materials
• FIREX coating for extended tool life in cast iron and steel
• Coolant-through design supports through-tool coolant delivery
• DIN 6537L long-series geometry with 5xD flute-to-diameter ratio
• Straight-cylindrical shank per DIN 6535 for standard collet and chuck compatibility

Compatibility

Designed for drilling cast iron and steel workpieces. Suitable for use in CNC machining centers and drill presses equipped with straight-shank toolholders or collets accepting a 0.2362-inch shank diameter.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered down and the spindle fully stopped. Secure the straight-cylindrical shank in a collet or drill chuck rated for the shank diameter before operation. When using the coolant-through feature, verify that the coolant pressure and flow rate are compatible with the machine spindle and toolholder. Inspect the cutting edges for chipping or wear before each use, as carbide tooling can fail suddenly if run beyond serviceable condition.