Guhring 9005520095200 Screw Machine Drill Bit 3/8 in

Product Description

The GUHRING 9005520095200 is a screw machine length (stub-length) twist drill bit designed for high-performance metal drilling in production and maintenance environments. Built from high-speed steel (HSS) with a bright, uncoated finish, it features a parabolic flute geometry that promotes fast chip evacuation and reduces heat buildup during cutting. The 130-degree split-point cone relief tip improves self-centering on entry and reduces thrust force compared to standard 118-degree points. The right-hand cutting direction and web-thinned construction make it well-suited for drilling steel, aluminum, and other non-ferrous materials. Machinists, tool-and-die workers, and maintenance mechanics are the primary installers of this bit.

This drill bit is sized at 3/8 inches (0.3750 inches decimal) with a matching straight cylindrical shank diameter of 0.3750 inches and an overall length of 3.5 inches, placing it in the stub-length category for increased rigidity in short-reach applications. The parabolic flute, rated at a 3xD flute-to-diameter ratio, makes this bit effective in drill presses, CNC machining centers, and hand-held power tools where chip clearing is critical. It is built to DIN 1897 specification and is appropriate for production drilling in steel and aluminum workpieces where hole accuracy and cycle time matter.

Key Features

• 130-degree cone relief point with web thinning for improved self-centering and reduced entry thrust
• Parabolic flute geometry with fast spiral promotes efficient chip evacuation in deep-hole drilling
• HSS construction provides toughness and re-sharpenability for general metalworking applications
• Stub-length (screw machine length) body increases rigidity and reduces deflection versus jobber-length bits
• Straight cylindrical shank fits standard drill chucks without adapters
• Conforms to DIN 1897 specification for consistent dimensional accuracy

Compatibility

Designed as a DIN 1897-compliant screw machine length drill bit suitable for use in standard 3/8-inch capacity drill chucks on drill presses, CNC machining centers, and hand-held power tools. Primary workpiece materials are steel, aluminum, and non-ferrous metals.

Installation Notes

A licensed machinist or qualified maintenance mechanic should verify chuck capacity and spindle speed before installing this bit. Ensure the drill press or machine spindle is fully powered down and locked out before changing tooling. Use appropriate cutting fluid or coolant when drilling steel to extend tool life, noting this bit does not have through-coolant capability. Secure the workpiece firmly to prevent rotation and verify drill chuck runout is within acceptable tolerances before starting a production run.