Guhring 9005520053100 Stub Drill Bit 0.209 in Hss

Product Description

The GUHRING 9005520053100 is a screw machine length (stub) drill bit designed for high-speed drilling in production and machining environments. Built to DIN 1897 standards, it measures 0.209 inches (wire size No. 4) in diameter with an overall length of 2-19/32 inches and a parabolic flute length of 1-7/64 inches. The 130-degree split point and web-thinned geometry reduce thrust and improve chip evacuation, making this bit well-suited for high-volume hole-making where speed and precision matter. Construction is high speed steel with a bright uncoated finish. Right-hand cut with a straight cylindrical shank.

This stub-length drill bit is intended for use in screw machines, CNC machining centers, drill presses, and turret lathes where a short, rigid tool is preferred over jobber-length bits. The primary workpiece material designation is aluminum, though the high speed steel construction handles a range of non-ferrous and ferrous materials in typical shop applications. The compact stub length minimizes deflection in applications with shallow-to-moderate hole depths. Maximum drilling depth is 0.789 inches, with a 3xD flute-to-diameter ratio that aids chip clearance in shorter cycle operations.

Key Features

• DIN 1897 specification for consistent dimensional standards
• Parabolic flute geometry promotes efficient chip evacuation and reduced heat buildup
• 130-degree drill point angle with web thinning lowers cutting thrust
• Stub length provides rigidity and reduces deflection in production drilling
• Bright uncoated finish suitable for use with or without cutting fluid
• Parallel web configuration with straight cylindrical shank for standard chuck compatibility

Compatibility

Designed as a DIN 1897 stub-length replacement drill bit for use in screw machines, turret lathes, CNC machining centers, and drill presses accepting a straight cylindrical shank in the 0.200 to 0.250 inch diameter range.

Installation Notes

Installation is performed by machinist or toolroom personnel. Secure the shank fully in the chuck or collet and verify runout before production use. Power down the machine and engage all lockout procedures before changing tooling. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speed and feed rate selection.