Guhring 9003290014000 Cobalt Stub Drill Bit Size 54

Product Description

The GUHRING 9003290014000 is a cobalt stub-length (screw machine length) drill bit designed for precision drilling in demanding materials. Built to DIN 1897 standards, it carries a wire gauge size of 54, equivalent to 0.0550 inches in diameter, and features a 130-degree split point with web thinning for improved penetration and reduced thrust. The bright, uncoated cobalt construction provides heat resistance and edge retention when working with abrasive or work-hardening materials. With an overall length of 1.2598 inches (32 mm) and a flute length of 9 mm, this stub-length bit offers rigid, chatter-free performance in production drilling environments. Installation and use are suited to licensed machinists and tool-and-die professionals.

This drill bit is engineered for use in titanium alloy and similarly tough workpiece materials where a standard-length bit would flex or wander. The stub-length body keeps the tool stiff and accurate in short-reach applications, making it well suited for CNC machining centers, drill presses, and production screw machine setups. The straight-cylindrical shank seats cleanly into standard chucks without adapters. The 3xD flute-to-diameter ratio and parallel web configuration support consistent chip evacuation at moderate feed rates.

Key Features

• Cobalt tool material with bright, uncoated finish for heat resistance in hard and abrasive alloys
• 130-degree standard point angle with web thinning reduces entry thrust and improves centering
• Stub-length body (32 mm OAL) maximizes rigidity and minimizes deflection
• DIN 1897 specification ensures dimensional consistency and interchangeability
• Right-hand cutting, 2-flute spiral design for efficient chip removal
• Diameter tolerance of +0.000 to -0.014 mm supports close-tolerance hole requirements

Compatibility

Designed as an OEM-style screw machine length drill bit suitable for use in standard straight-shank chucks on CNC machining centers, drill presses, and production screw machines where a stub-length cobalt bit meeting DIN 1897 is specified.

Installation Notes

This bit should be installed by qualified machinists familiar with cutting tool selection and feeds-and-speeds for cobalt tooling in hard alloys. Secure the straight-cylindrical shank fully in the chuck before operation and verify runout before beginning a production run. Do not exceed the recommended maximum drilling depth of 0.272 inches (6.90 mm) per pass without retracting to clear chips. Coolant-through is not supported on this bit, so external coolant or cutting fluid should be applied appropriately for the workpiece material.