Guhring 9055140111100 7/16 in Solid Carbide Drill Bit

Product Description

The GUHRING 9055140111100 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding metalworking applications. Built to DIN 6537K standards, this bit features a 140-degree split point (SU point type) with web thinning for reduced thrust and improved hole entry. The straight-cylindrical shank measures 12.00 mm in diameter, and the overall length is 102.00 mm (approximately 4.02 inches). With a 2-flute spiral configuration and a 3xD flute-to-diameter ratio, it delivers efficient chip evacuation in short-hole drilling operations. A coated finish extends tool life in abrasive materials.

This drill bit is rated for use in cast iron and steel, making it a go-to choice for tool rooms, production machining cells, and maintenance shops that require consistent, repeatable hole quality. The screw machine length geometry — shorter overall length than a jobber bit — provides added rigidity and reduced deflection in CNC machining centers, drill presses, and turret lathes. The Series 5514 designation identifies this as part of a standardized solid carbide stub-length line suited to high-cycle production environments.

Key Features

• Solid carbide construction with submicron grain material grade for hardness and wear resistance
• 140-degree SU split point with web thinning reduces entry thrust and walking
• 2-flute spiral design promotes chip flow in steel and cast iron
• Screw machine (stub) length provides rigidity and minimizes deflection
• Coated finish for extended tool life in ferrous materials
• Conforms to DIN 6537K specification for consistent dimensional accuracy

Compatibility

Designed for drilling cast iron and steel workpieces. Fits standard straight-shank toolholders and drill chucks accepting a 12.00 mm shank diameter. Suitable for CNC machining centers, drill presses, and similar machine tool spindles configured for stub-length solid carbide tooling.

Installation Notes

Installation and operation of this tooling should be performed by qualified machinists familiar with carbide drill handling. Secure the shank fully in the chuck or collet to the recommended grip depth before operation. Carbide tooling is brittle — avoid lateral side loads, interrupted cuts without proper feed rate adjustments, and improper runout, all of which can cause chipping or fracture. Verify spindle runout and coolant delivery setup before engaging the workpiece.