Guhring 9055110111100 Carbide Jobber Drill Bit 7/16 in

Product Description

The GUHRING 9055110111100 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding metalworking applications. Built to DIN 6537 L standards, it features a 140-degree split-point (SU) tip geometry with web thinning for self-centering entry without a center punch. The FIREX coating improves heat and wear resistance at elevated cutting speeds. At 4.6457 inches overall length with a 2.7953-inch flute length, this is a compact, rigid tool suited for CNC machining centers and drill presses running ferrous materials at production volumes. A licensed machinist or toolroom technician is the typical end user.

This drill bit is engineered for cutting cast iron and steel, corresponding to ISO material groups K and P. The 5xD flute-to-diameter ratio and coolant-through design support deeper hole cycles with chip evacuation and thermal control. It fits standard toolholders accepting a 0.4724-inch straight-cylindrical shank, making it compatible with a wide range of collet chucks and drill chucks used in production machining environments. The regular spiral and tapered web configuration handle both interrupted cuts and continuous feed operations in ferrous stock.

Key Features

• 140-degree SU split point with web thinning for self-centering entry
• FIREX coating for extended tool life in cast iron and steel
• Coolant-through design supports chip evacuation in deep-hole cycles
• Submicron solid carbide substrate for rigidity and edge retention
• DIN 6535 and DIN 6537 L compliant geometry
• Regular spiral flute with 5xD ratio for balanced chip flow

Compatibility

Designed for use in cast iron and steel workpieces (ISO material groups K and P). Fits toolholders and collet chucks accepting a straight-cylindrical shank of 0.4724 inches in diameter, consistent with DIN 6535 shank standards.

Installation Notes

This drill bit is installed by a machinist or CNC toolroom technician. Secure the shank fully in the collet or drill chuck and verify runout before cutting. Coolant-through capability requires a compatible spindle and toolholder with internal coolant supply for best results. Inspect cutting edges before each use and replace if chipping or coating wear is observed, as running a damaged carbide tool can damage the workpiece or toolholder.