Guhring 9005520027900 Screw Machine Drill Bit Hss

Product Description

The GUHRING 9005520027900 is a stub-length (screw machine length) drill bit designed for high-performance drilling in production and machining environments. Built from high speed steel with a bright/uncoated finish, it cuts a 0.11 inch (7/64 inch, Wire Size 35) diameter hole with a 130-degree split point angle and a web-thinned, parallel web configuration. The parabolic flute geometry promotes efficient chip evacuation, reducing heat buildup and improving feed rates. With a straight-cylindrical shank and a maximum drilling depth of 0.465 inches, this bit is suited for short-reach, high-cycle drilling operations. It conforms to DIN 1897 standards.

This drill bit is optimized for use in aluminum and other non-ferrous materials, though its high speed steel construction handles a range of general-purpose workpiece materials in shop and production settings. The stub length format reduces deflection and increases rigidity compared to jobber-length bits, making it well suited for drill press, CNC, and turret lathe applications where hole location accuracy matters. Machinists, tool and die workers, and production line technicians are the typical end users.

Key Features

• 0.11 inch diameter (7/64 inch / Wire Size 35) per DIN 1897 specification
• Parabolic flute with web thinning for improved chip flow and reduced thrust
• 130-degree drill point angle for self-centering starts on flat and curved surfaces
• Stub length body (1-13/16 inches overall, 5/8 inch flute length) minimizes deflection
• Bright/uncoated high speed steel construction rated for high-performance grade applications
• Right-hand cut with straight-cylindrical shank for standard chuck compatibility

Compatibility

Designed as a DIN 1897 Series 552 stub-length drill bit compatible with standard straight-shank drill chucks and collet systems accepting a 0.11 inch shank diameter. Primary workpiece material rating is aluminum; suitable for general non-ferrous and ferrous applications consistent with high speed steel tooling.

Installation Notes

Installation is performed by machinists and tooling technicians on drill presses, CNC machining centers, or turret lathes. Ensure the shank is fully seated and the chuck or collet is properly tightened before operation. Confirm spindle speed and feed rate are appropriate for the workpiece material and bit diameter before cutting. Inspect the cutting edges for wear or damage before each use and replace if chipping or dulling is observed.