Guhring 9005520060400 Screw Machine Drill Bit 0.2378in

Product Description

The GUHRING 9005520060400 is a screw machine length (stub length) drill bit designed for high-performance drilling in production and general metalworking environments. Built from high speed steel with a bright, uncoated finish, it measures 0.2378 inches (Letter B) in diameter with an overall length of 2.75 inches and a flute length of 1.21875 inches. The 130-degree split point and parabolic flute geometry allow for faster chip evacuation and reduced thrust compared to standard jobber bits. Web thinning further reduces cutting resistance. Licensed machinists, tool-and-die workers, and maintenance technicians install this bit in drill presses, CNC machines, and hand-held power drills where a short, rigid tool is required.

This drill bit is suited for drilling aluminum, aluminum alloy, brass, and steel in both shop and field applications. The stub length body minimizes deflection in short-reach setups, making it a practical choice for high-volume hole drilling in tight fixtures, jigs, or close-tolerance work. The straight-cylindrical shank seats securely in standard Jacobs-style chucks and collet systems without modification. It conforms to DIN 1897 specification, which defines stub-length drill geometry and tolerances for industrial use.

Key Features

• Parabolic flute geometry promotes rapid chip evacuation and reduces heat buildup in steel and non-ferrous metals
• 130-degree drill point angle provides self-centering entry and lowers required thrust force
• Web-thinned parallel web reduces cutting resistance without sacrificing core strength
• Stub (screw machine) length body increases rigidity and minimizes bit deflection
• Bright, uncoated high speed steel finish is suitable for re-sharpening and works across a broad range of workpiece materials
• Conforms to DIN 1897 specification for consistent dimensional accuracy

Compatibility

Designed as a DIN 1897 stub-length replacement drill bit for use with aluminum, aluminum alloy, brass, and steel workpieces. Compatible with any standard drill press, CNC spindle, or hand drill accepting a 0.2378-inch straight-cylindrical shank.

Installation Notes

Install and remove drill bits only with the machine fully powered down and the spindle at a complete stop. Secure the shank fully in the chuck or collet and verify runout before beginning a cut. Wear appropriate eye protection and follow shop safety procedures when operating drilling equipment. Inspect the cutting edges for wear or chipping before each use and resharpen or replace the bit as needed to maintain hole-diameter tolerance.