Guhring 9011830091000 Jobber Drill Bit 9.1mm Carbide

Product Description

The GUHRING 9011830091000 is a jobber length drill bit designed for precision drilling in ferrous materials. Built from submicron-grade solid carbide and coated with titanium nitride (TiN), it delivers extended wear resistance and improved chip evacuation in demanding production environments. The bit features a 140-degree split point (SU geometry) with web thinning for self-centering entry without a center punch. At 9.1 mm in diameter with a 103 mm overall length and 61 mm flute length, it fits standard CNC machining centers and drill presses. A whistle notch shank ensures positive drive engagement and accurate tool holding.

This drill bit is rated for use in cast iron and steel (DIN material groups K and P). The 5xD flute-to-diameter ratio supports drilling to a maximum depth of 47.35 mm. Internal coolant-through capability makes it well suited for deep-hole operations in high-volume machining and tool room environments where heat management is critical. It is a single-unit tool intended for professional machinists, tool-and-die shops, and production facilities running automated or manual drilling operations.

Key Features

• Submicron-grade solid carbide substrate for high rigidity and heat resistance
• Titanium nitride (TiN) coating extends tool life in ferrous materials
• 140-degree SU split point with web thinning for self-centering entry
• Coolant-through design supports deep-hole drilling up to 47.35 mm
• Whistle notch shank provides positive drive and accurate seating in tool holders
• Conforms to DIN 6535 and DIN 6537 L standards

Compatibility

Designed for use in cast iron and steel workpiece materials (DIN material groups K and P). Conforms to DIN 6537 L and DIN 6535 standards. Fits tool holders accepting a 10 mm (0.3937 inch) shank with whistle notch drive.

Installation Notes

Installation and use should be performed by qualified machinists familiar with carbide tooling and CNC or manual drill press setups. Ensure the machine spindle and tool holder are clean and free of chips before seating the shank. Carbide drill bits are brittle compared to high-speed steel — avoid side loading, interrupted cuts without appropriate feed rate adjustment, or dropping the tool on hard surfaces. Verify coolant lines are clear and flowing before beginning deep-hole operations.