Guhring 9055140067000 Screw Machine Drill Bit 0.2638in

Product Description

The GUHRING 9055140067000 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous materials. Part of the Series 5514 product line, it carries a 0.2638-inch diameter with a 140-degree split point (SU point type) and a right-hand spiral flute configuration. The overall length is 79 mm with a flute length of 34 mm, giving it the short, rigid profile that screw machine length drills are known for. The coated finish and submicron carbide grade support tool life in demanding production environments. This bit is installed by machinists and tool-and-die professionals in CNC and manual drilling applications.

This drill bit is suited for cutting cast iron and steel in production or job-shop environments where hole accuracy and tool longevity are critical. The screw machine length format provides increased rigidity compared to jobber-length bits, making it well-suited for close-tolerance work on short-stroke drill presses, CNC machining centers, and automated screw machines. The web-thinned, parallel-web design reduces thrust force at entry, which is especially useful in harder ferrous materials. The 3xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes up to 0.943 inches.

Key Features

• Solid carbide submicron grade construction for high wear resistance in cast iron and steel
• 140-degree SU split point reduces walking and lowers thrust at drill entry
• Screw machine length profile delivers extra rigidity over jobber-length alternatives
• Web-thinned parallel web design reduces cutting force in harder workpiece materials
• Right-hand spiral flute promotes consistent chip evacuation
• Meets DIN 6537 K specification for dimensional and geometric consistency

Compatibility

Designed for use in applications requiring a 0.2638-inch diameter hole in cast iron or steel workpieces, conforming to DIN 6537 K standards. Fits standard straight-cylindrical shank tool holders and collet chucks sized for the corresponding shank diameter.

Installation Notes

This bit is installed by machinists in CNC machining centers, drill presses, or screw machines using a compatible straight-shank collet or drill chuck. Always ensure the machine spindle and workpiece are fully secured before operation. Confirm correct RPM and feed rate for the workpiece material and diameter per the manufacturer or standard machining data references before running. Do not use this bit without appropriate chip clearance and coolant or lubrication as required by the application.