Guhring 9005520088400 Screw Machine Drill Bit Hss

Product Description

The GUHRING 9005520088400 is a stub-length, high speed steel screw machine drill bit designed for fast, accurate drilling in production and maintenance environments. Sized at 0.348 inches (Letter S) in diameter, it features a 130-degree split point and a parabolic flute geometry that promotes efficient chip evacuation and reduced cutting resistance. The straight-cylindrical shank and web-thinned tip reduce thrust requirements, making this bit well suited for drilling aluminum and similar non-ferrous materials. It is typically installed and used by machinists, tool-and-die technicians, and maintenance trades working with drill presses, CNC machines, or handheld power tools.

This drill bit is built to DIN 1897 standards for stub-length (screw machine length) tooling, placing it in applications where a shorter flute length improves rigidity and positional accuracy. It fits standard drill chucks accepting a 0.348-inch straight shank. The 3xD flute-to-diameter ratio limits maximum drilling depth to 1.053 inches per pass, making it appropriate for shallow-to-medium depth holes in sheet stock, brackets, and machined components. The bright, uncoated finish is well suited for aluminum and other softer workpiece materials where coatings are not required.

Key Features

• Parabolic flute geometry promotes rapid chip evacuation and reduces heat buildup
• 130-degree drill point angle with web thinning reduces entry thrust and improves hole accuracy
• High speed steel construction provides durability across repeated use in production settings
• Bright, uncoated finish optimized for aluminum and non-ferrous workpiece materials
• Straight-cylindrical shank fits standard drill chucks without modification
• Conforms to DIN 1897 stub-length specification for improved rigidity over jobber-length bits

Compatibility

Designed as a DIN 1897 Series 552 stub-length replacement drill bit for applications requiring a 0.348-inch (Letter S) diameter, straight-shank tool compatible with standard drill chucks and collet systems accepting that shank size.

Installation Notes

This bit is installed by machinists and maintenance technicians in drill presses, CNC drilling centers, or handheld power tools equipped with a compatible chuck. Secure the shank fully in the chuck before operation and verify the spindle is at a dead stop before bit changes. Use appropriate cutting fluid or lubricant for the workpiece material to extend tool life. Do not exceed the maximum recommended drilling depth of 1.053 inches per pass without retracting to clear chips.