Guhring 9005520081000 Stub Drill Bit 0.3189in Hss

Product Description

The GUHRING 9005520081000 is a stub-length (screw machine length) high speed steel drill bit designed for fast, accurate drilling in aluminum and other non-ferrous materials. Manufactured to DIN 1897 standards, it features a parabolic flute geometry and a 130-degree split point that promotes efficient chip evacuation and reduces thrust in short-depth applications. The bright, uncoated finish is standard for HSS tooling used in general-purpose machining. This bit belongs to the Series 552 and is intended for use by machinists and tool-and-die professionals in production environments where stub-length rigidity is required.

This drill bit is suited for short-hole drilling operations in aluminum as a primary workpiece material, where a compact stub-length body improves rigidity and reduces deflection compared to jobber-length bits. The parabolic flute profile paired with web thinning enhances chip flow at the cutting edge, making it effective for moderate-speed drilling in CNC machining centers, drill presses, and manual machine tools. The straight cylindrical shank provides consistent clamping in standard drill chucks and collet systems.

Key Features

• DIN 1897 stub length geometry for improved rigidity in short-depth holes
• Parabolic flute with web thinning promotes chip evacuation and reduces cutting force
• 130-degree point angle optimized for aluminum and non-ferrous materials
• High speed steel construction with bright uncoated finish for standard machining applications
• Right-hand cut with straight cylindrical shank for compatibility with standard chucks and collets
• Parallel web configuration maintains consistent edge geometry through regrind cycles

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for machining operations requiring a DIN 1897 stub-length bit in the 0.3000 to 0.3500 inch diameter range.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists familiar with machine tool operation and cutting tool setup. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable tolerance for the application. Do not exceed the recommended drilling depth of 0.9780 inches for this stub-length configuration. Always power down and de-energize the machine before changing tooling.