Guhring 9005520103200 Screw Machine Drill Bit 13/32 in

Product Description

The GUHRING 9005520103200 is a screw machine length (stub) drill bit engineered for high-performance drilling in steel, aluminum, and non-ferrous materials. It carries a 13/32 inch (0.4062 inch decimal) diameter with a 130-degree cone relief point and a parabolic flute geometry that promotes fast chip evacuation and reduced heat buildup. Overall length is 3-1/2 inches, making it well suited for CNC machining centers, drill presses, and screw machine applications where a short, rigid tool is required. The bright uncoated HSS construction is appropriate for general-purpose cutting where coating is not specified by the job. Manufactured to DIN 1897 standards, this bit is a high-performance grade tool intended for use by machinists and tool room professionals.

This bit is used in production machining environments, job shops, and maintenance operations where a short drill with controlled runout and consistent geometry is needed. The straight cylindrical shank seats directly in standard drill chucks or collet holders without adapters. Its 3xD flute-to-diameter ratio and web-thinned parallel web configuration make it particularly effective in moderate-depth hole applications in ferrous and non-ferrous workpieces. Maximum drilling depth is 1.083 inches. Typical applications include drilling pilot holes, through-holes, and clearance holes in steel plate, bar stock, and aluminum extrusions.

Key Features

• Parabolic flute geometry promotes fast chip evacuation and reduces chip packing in deeper cuts
• 130-degree cone relief point reduces thrust force and improves self-centering on entry
• Web-thinned parallel web lowers cutting resistance and extends tool life
• Stub length body provides added rigidity and minimizes deflection compared to jobber length bits
• Bright uncoated HSS finish allows easy regrinding and visual wear inspection
• Manufactured to DIN 1897 specification for consistent dimensional tolerances

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for standard drill chucks and collet holders accepting a 0.4063 inch straight cylindrical shank, suitable for screw machine and stub-length drill applications in steel, aluminum, and non-ferrous materials.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with drill press, CNC, or screw machine operation. Ensure the spindle is fully stopped and the machine is de-energized before changing tooling. Seat the straight shank fully in the chuck or collet and verify runout before beginning the cut. Do not exceed the rated maximum drilling depth of 1.083 inches without retracting to clear chips.