Guhring 9011830073000 Carbide Drill Bit 7.3 Mm Tin

Product Description

The GUHRING 9011830073000 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding production environments. Built to DIN 6537 L standards, it features a 140-degree split point (SU) geometry with web thinning for self-centering entry without a pilot hole. The titanium nitride (TiN) coating increases surface hardness and extends tool life in abrasive materials. At 7.3 mm in diameter with a 91 mm overall length and a 53 mm flute length, this bit is suited for applications requiring tight tolerances. Coolant-through capability supports deep-hole operations and chip evacuation at elevated feeds and speeds.

This drill bit is rated for cast iron and steel workpiece materials, making it a reliable choice for machining shops, maintenance facilities, and production lines where ferrous materials are machined regularly. The whistle notch shank provides a secure grip in compatible toolholders and reduces slippage under load. Its 5xD flute-to-diameter ratio and regular spiral flute design support consistent chip flow in through-hole and blind-hole applications. The submicron carbide grade delivers the hardness and edge retention needed for high-volume drilling cycles.

Key Features

• Solid submicron carbide construction for hardness and wear resistance in ferrous materials
• Titanium nitride (TiN) coating extends tool life and reduces built-up edge
• 140-degree SU split point with web thinning enables self-centering without spot drilling
• Coolant-through design supports chip evacuation in deep-hole drilling up to 42.05 mm depth
• Whistle notch shank prevents rotational slippage in toolholders
• Conforms to DIN 6535 and DIN 6537 L standards for dimensional consistency

Compatibility

Designed for use with toolholders accepting a 0.3150 inch shank diameter with a whistle notch interface. Primary workpiece materials are cast iron (material code K) and steel (material code P) per DIN classification. Fits applications within the 7.00 mm to 8.00 mm drill size range.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle and toolholder are clean and free of chips before seating the shank. Confirm coolant lines are clear and pressure is set before engaging coolant-through drilling cycles. Do not exceed the rated maximum drilling depth of 42.05 mm without retracting to clear chips.