Guhring 9005020084300 Extra Length Drill Bit Hss

Product Description

The GUHRING 9005020084300 is a Series 502 extra length high speed steel drill bit engineered for deep hole drilling applications. It measures 0.3319 inches (Letter Q, 8.43 mm) in diameter with an overall length of 9.4375 inches and a parabolic flute length of 6.5 inches. The parabolic flute geometry promotes efficient chip evacuation during extended drilling cycles, reducing the risk of chip packing in deep bores. With a 130-degree drill point angle and web-thinned, tapered web configuration, this bit enters the workpiece cleanly and maintains directional stability at depth. It is manufactured to DIN 1869 specification and carries a High Performance grade designation. Installation and use are suited to licensed machinists and trade professionals working with production or precision drilling equipment.

This drill bit is rated for deep hole drilling with a maximum drilling depth of 5.998 inches (152.36 mm), corresponding to a 15xD flute-to-diameter ratio. Its primary designated workpiece material is aluminum, though DIN 1869 geometry is broadly used across similar non-ferrous and some ferrous applications. The straight-cylindrical shank with a 0.3319-inch shank diameter seats securely in standard drill chucks and collet holders. This bit ships individually and is suited for CNC machining centers, drill presses, and manual production drilling setups where extended reach is required.

Key Features

• Parabolic flute design promotes aggressive chip evacuation in deep bore applications
• 130-degree drill point angle with web-thinned, tapered web for clean entry and reduced thrust
• Maximum drilling depth of 5.998 inches (152.36 mm) at a 15xD ratio
• Manufactured to DIN 1869 standard for consistent geometry and tolerancing
• Straight-cylindrical shank compatible with standard chucks and collet systems
• Uncoated high speed steel construction; diameter tolerance of +0.000 to -0.022 mm

Compatibility

Designed as a DIN 1869 Series 502 extra length drill bit for use in drilling equipment accepting a 0.3319-inch straight-cylindrical shank; optimized for aluminum (material code K, N, P) but applicable across compatible workpiece materials where parabolic flute geometry is specified.

Installation Notes

This bit is installed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify chuck or collet bore size matches the 0.3319-inch shank diameter before seating. Follow applicable shop safety procedures and manufacturer feed-and-speed guidelines for the workpiece material; do not exceed the rated maximum drilling depth of 5.998 inches without evaluating chip load and tool deflection.