Guhring 9005520014500 Stub Drill Bit 0.0571 in Hss

Product Description

The GUHRING 9005520014500 is a screw machine length (stub) drill bit designed for high-accuracy small-diameter drilling in production and machine shop environments. Built from high speed steel (HSS) with a bright/uncoated finish, it features a parabolic flute geometry and a web-thinned, parallel web configuration that improves chip evacuation and reduces thrust force. The 130-degree split point provides positive cutting action and accurate hole entry without a center punch in many applications. At 0.0571 inches (1.45 mm) in diameter, this bit suits precise, small-bore work where dimensional control is critical.

This drill bit is rated for use on aluminum as its primary workpiece material and is well suited for CNC machining centers, screw machines, and bench drill presses where stub-length rigidity is an advantage. The short overall length of 1.26 inches (32 mm) and a flute length of 0.3543 inches (9 mm) minimize deflection in close-tolerance drilling operations. Maximum drilling depth is 0.269 inches (6.83 mm). The straight-cylindrical shank fits standard drill chucks without adapters. Manufactured to DIN 1897 specification, this is a high-performance grade bit intended for shop professionals and machinists who require consistent results across repeated holes.

Key Features

• Screw machine (stub) length per DIN 1897 for maximum rigidity and reduced deflection
• Parabolic flute with web-thinned parallel web for improved chip evacuation
• 130-degree standard point with positive cutting entry on aluminum and similar materials
• High speed steel construction, bright/uncoated finish
• Straight-cylindrical shank fits standard drill chucks directly
• Diameter tolerance held to +0.000 to -0.014 mm for consistent hole sizing

Compatibility

Designed as a DIN 1897 stub-length replacement or production drill bit for use in standard drill chucks accepting a straight-cylindrical shank; rated for aluminum as primary workpiece material.

Installation Notes

Secure the shank fully in the drill chuck and verify runout before production drilling. Power down the machine and lock out the spindle before changing bits. Maintain appropriate feed rates and cutting speeds for high speed steel tooling to avoid overheating and premature edge wear. Consult the machine manufacturer and applicable shop safety standards when setting up small-diameter drilling operations.