Guhring 9055150055600 Jobber Drill Bit 7/32 in Carbide

Product Description

The GUHRING 9055150055600 is a solid carbide jobber length drill bit designed for precision drilling in ferrous materials including cast iron and steel. Built to DIN 6537L standards, it features a 140-degree split-point (SU) tip and a FIREX coating that extends tool life under demanding cutting conditions. The 7/32 inch (0.2188 inch) diameter bit has an overall length of 82 mm and a spiral flute length of 44 mm, with a tapered web and web-thinned geometry that aids self-centering and reduces thrust on entry. It is suited for machining and fabrication shops running production work on steel and cast iron components.

This drill bit is sized at 7/32 inch diameter with a straight-cylindrical shank measuring 6 mm in diameter and 36 mm in length. It follows a 5xD flute-to-diameter ratio, placing it in the jobber length category appropriate for general-purpose through-hole drilling at moderate depths. The maximum drilling depth is 35.66 mm (1.404 inches). Primary applications include drilling into cast iron and steel workpieces in CNC machining centers, drill presses, and manual machine tools. It is commonly specified by machinists and tool-and-die professionals who require consistent hole tolerance in high-volume or precision work.

Key Features

• Solid carbide submicron-grade construction for hardness and wear resistance in ferrous materials
• FIREX coating provides heat and oxidation resistance, extending tool life in steel and cast iron
• 140-degree SU split-point tip for self-centering entry without a center punch
• Web-thinned, tapered web design reduces axial cutting force and improves chip evacuation
• Right-hand cut, two-flute spiral design conforms to DIN 6535 and DIN 6537 L standards
• Diameter tolerance held to 0.004 to 0.016 mm for consistent, repeatable hole sizing

Compatibility

Designed for drilling cast iron and steel workpieces as identified by material codes K and P. Conforms to DIN 6537L and DIN 6535 standards, making it a direct fit in tooling systems specifying Series 5515 Guhring jobber length carbide drills.

Installation Notes

Installation is performed by machinists and CNC operators familiar with solid carbide tooling. Carbide drills are brittle compared to high-speed steel and require rigid setups with minimal runout to prevent chipping or breakage. Confirm spindle runout and collet or chuck condition before use. Coolant-through is not supported on this bit, so adequate flood or mist cooling at the cutting zone is recommended when drilling at production feed and speed rates.