Guhring 9005020035000 Extra Length Drill Bit 3.5 Mm Hss

Product Description

The GUHRING 9005020035000 is an extra length high-speed steel drill bit engineered for deep hole drilling in demanding shop and field applications. At 3.5 mm in diameter with a 130-degree point angle and a parabolic flute design, this bit delivers efficient chip evacuation and accurate entry in a wide range of materials. The overall length is 165 mm, with a 115 mm flute length that supports a maximum drilling depth of 109.75 mm. Web thinning with a tapered web configuration reduces thrust at entry and helps maintain centerline accuracy through deep passes. Manufactured to DIN 1869 standards, it carries a high-performance grade designation suitable for production and maintenance environments.

This drill bit is designed primarily for deep hole drilling applications where standard-length tooling cannot reach. Its parabolic flute geometry and right-hand cutting direction make it well suited for aluminum and similar non-ferrous materials, as indicated by the K, N, and P workpiece material codes. The straight-cylindrical shank seats securely in standard drill chucks and collets without modification. Licensed machinists, toolroom technicians, and maintenance professionals working in HVAC fabrication, plumbing rough-in, and electrical conduit drilling will find it appropriate for precision bore work in metal substrates.

Key Features

• DIN 1869 extra length standard with 15xD flute-to-diameter ratio for extended reach
• 130-degree point angle with standard point type reduces walking and improves entry accuracy
• Parabolic flute geometry accelerates chip removal in deep holes
• Web-thinned, tapered web lowers cutting thrust at the drill tip
• Straight-cylindrical shank at 0.1378 inches diameter fits standard chucks and collets
• Right-hand cutting direction; nitride finish on high-speed steel substrate

Compatibility

Designed as an OEM-style replacement or direct-use tooling for applications requiring DIN 1869 Series 502 extra length drill bits in 3.5 mm diameter with straight-cylindrical shanks.

Installation Notes

This drill bit is installed and operated by machinists or skilled tradespeople using standard drill presses, hand drills, or CNC spindles capable of accepting a straight-cylindrical shank. Ensure the chuck or collet is fully seated and tightened before operation, and confirm the workpiece is clamped securely to prevent movement. Use appropriate cutting fluid or coolant for the workpiece material, even though this bit does not support through-tool coolant. Inspect the cutting edges and web area for wear or chipping before each use and replace the bit if damage is observed.