Guhring 9005520061500 Screw Machine Drill Bit Hss

Product Description

The GUHRING 9005520061500 is a stub-length screw machine drill bit designed for high-speed steel cutting applications in production and machine shop environments. Built to DIN 1897 standards, this Series 552 bit features a 130-degree split point and a parabolic flute geometry with web thinning for improved chip evacuation and reduced thrust. The straight-cylindrical shank measures 0.2421 inches in diameter (Letter C), and the overall length is 2.75 inches. Right-hand cut direction and a bright, uncoated finish make this bit suitable for a broad range of general-purpose drilling tasks where coatings are not required.

This drill bit is optimized for use in aluminum and other non-ferrous or softer materials. The stub-length format provides added rigidity compared to jobber-length bits, making it well suited for CNC machining centers, drill presses, and screw machines where minimizing deflection is important. The parabolic flute design with a 3xD flute-to-diameter ratio supports efficient chip removal at higher feed rates. Machinists, toolroom technicians, and production drilling operators are the primary users of this type of tooling.

Key Features

• DIN 1897 stub-length format for increased rigidity and reduced deflection
• 130-degree split point with web thinning for lower entry thrust and improved centering
• Parabolic flute geometry promotes fast chip evacuation at higher feed rates
• High-speed steel construction rated as high-performance grade
• Bright, uncoated finish suitable for aluminum and non-ferrous materials
• Straight-cylindrical shank compatible with standard drill chucks and collets

Compatibility

Designed as an OEM-style screw machine length drill bit conforming to DIN 1897 specifications, suitable for use in standard drill chucks and collets accepting a 0.2421-inch straight-cylindrical shank.

Installation Notes

Installation and use of this tooling should be performed by qualified machinists or toolroom technicians familiar with cutting tool setup and machine operation. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the chuck or collet. Verify chuck or collet runout is within acceptable tolerance before drilling to avoid premature tool wear. Follow machine manufacturer feed and speed guidelines for the workpiece material being drilled.