Guhring 9005150060400 Screw Machine Drill Bit 0.2378in

Product Description

The GUHRING 9005150060400 is a screw machine length (stub) drill bit designed for high-throughput drilling in ferrous materials. Built from powdered metal with a coated finish, this bit runs a 2-flute parabolic spiral configuration that promotes efficient chip evacuation in deep-hole and production drilling applications. The 130-degree split-point geometry with web thinning and cone relief reduces thrust force and improves centering without a pilot hole. At 2.7559 inches overall length and a 1.2205-inch flute length, it fits standard drill chucks and quick-change systems used on drill presses, CNC lathes, and screw machines.

This bit is suited for production drilling in cast iron and steel in both job-shop and automated machining environments. The stub-length body provides added rigidity over jobber-length bits, making it a reliable choice when minimizing deflection in short, repeated drilling cycles. The straight-cylindrical shank seats securely in collet chucks and standard drill press spindles. It conforms to DIN 1897 standards and carries an h8 diameter tolerance for consistent, repeatable hole sizing. Machinists, tool-and-die shops, and maintenance technicians working with ferrous stock are the primary users.

Key Features

• Parabolic flute geometry with fast spiral for aggressive chip removal in steel and cast iron
• 130-degree cone-relief point with web thinning reduces entry thrust and self-centers on contact
• Powdered metal construction with coating for extended tool life in production environments
• Stub-length body (2.7559 inches OAL) adds rigidity and reduces deflection versus jobber bits
• Straight-cylindrical shank fits standard collet chucks and drill press spindles without adapters
• DIN 1897 compliant with h8 diameter tolerance for consistent hole sizing

Compatibility

Designed for drilling cast iron and steel. Conforms to DIN 1897 and fits within the 0.2000 to 0.2500 inch drill bit size range. Compatible with standard straight-shank collet chucks, drill press spindles, and CNC tool holders accepting cylindrical shanks.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotary cutting tools. Secure the shank fully in the chuck or collet before operation and verify runout before drilling production parts. Ensure the workpiece is clamped or fixtured to prevent rotation. Do not exceed the recommended maximum drilling depth of 0.8640 inches per pass without retracting to clear chips.