Guhring 9005020070000 Extra Length Drill Bit Hss

Product Description

The GUHRING 9005020070000 is a high-speed steel extra length drill bit engineered for deep hole drilling applications in metalworking and industrial environments. Built to DIN 1869 standards, this Series 502 bit features a parabolic flute geometry and a web-thinned, tapered web configuration that promotes efficient chip evacuation and reduces thrust at entry. The 0.2756 inch diameter corresponds to the 7.00 mm metric designation, and the bit runs uncoated in a right-hand cutting direction. Licensed machinists, toolroom technicians, and production floor operators working on aluminum and similar materials will recognize this as a purpose-built deep-hole tool with a 15xD flute-to-diameter ratio.

This drill bit is primarily applied in deep hole drilling scenarios where standard-length bits cannot reach the required depth. The parabolic flute profile is especially well-suited to aluminum, plastics, and non-ferrous workpiece materials as identified by material codes K, N, and P. With a flute length of 6.102 inches and a maximum drilling depth of 5.689 inches, it is appropriate for CNC machining centers, drill presses, and manual machine tools where extended reach and chip clearance are critical. The straight-cylindrical shank with a 0.2756 inch shank diameter allows direct chuck mounting without additional adapters in standard toolholding setups.

Key Features

• Parabolic flute geometry with web thinning for improved chip evacuation in deep holes
• Meets DIN 1869 standard for extra length twist drills
• 130 degree drill point angle with standard point type for positive entry
• Uncoated high-speed steel construction for use across a range of cutting fluids and dry conditions
• 15xD flute-to-diameter ratio supports drilling depths up to 5.689 inches
• Right-hand cutting direction with two-flute configuration for consistent chip load

Compatibility

Designed as a DIN 1869 Series 502 extra length drill bit for deep hole drilling operations in aluminum and non-ferrous workpiece materials. No specific machine model compatibility was provided in the product data.

Installation Notes

Installation is performed by machinists or toolroom technicians using a standard drill chuck or collet that accepts a 0.2756 inch straight-cylindrical shank. Ensure the workpiece is securely fixtured and the spindle is at a full stop before loading or removing the bit. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality. Inspect the cutting edges and web area for wear before each use, particularly when running extended drilling cycles.