Guhring 9005020102000 Extra Length Drill Bit 0.4016 in Hss

Product Description

The GUHRING 9005020102000 is a high-speed steel extra length drill bit engineered for deep hole drilling applications. Manufactured to DIN 1869 standards, this Series 502 bit features a parabolic flute design and web-thinned, tapered web configuration that promotes efficient chip evacuation at extended depths. The drill carries a 130-degree point angle, a straight-cylindrical shank, and an uncoated HSS construction suited for right-hand cutting. With a flute length of 7.2835 inches and an overall length of 10.4331 inches, this bit handles demanding reach requirements that standard-length drills cannot meet. It is sold as a single unit and is intended for installation and use by machinists, maintenance technicians, and metalworking trade professionals.

This drill bit is designed for deep hole drilling into aluminum and similar non-ferrous and ferrous workpiece materials. The parabolic flute geometry supports aggressive chip clearance, making it a practical choice for production and maintenance environments where hole depth exceeds what standard jobber-length bits can reach. The 15xD flute-to-diameter ratio allows drilling to a maximum depth of 6.6810 inches in a single pass setup where appropriate fixturing and feeds are used. The straight-cylindrical shank seats directly into standard drill chucks and collet holders without adapters.

Key Features

• DIN 1869 specification — consistent dimensional tolerances across production runs
• Parabolic flute geometry for efficient chip evacuation in deep hole applications
• Web-thinned, tapered web reduces entry force and improves point stability
• 130-degree split point angle suited for aluminum and general metalworking materials
• 15xD flute-by-diameter ratio supports drilling depths up to 6.6810 inches
• Uncoated HSS construction — compatible with regrinding and resharpening in the field

Compatibility

Designed as an OEM-style replacement and direct-application extra length drill bit for use with standard drill chucks and collet holders accepting a 0.4016-inch straight-cylindrical shank. Primary workpiece material designation is aluminum (material codes K, N, P per DIN classification).

Installation Notes

Installation and use should be performed by qualified machinists or tool-and-die professionals familiar with drill press, milling machine, or CNC drilling operations. Secure the shank fully within the chuck or collet before operation and verify runout before drilling. Power down and de-energize the machine spindle completely before bit changes or inspection. Do not exceed the maximum drilling depth of 6.6810 inches without confirming fixture rigidity and chip-clearing intervals appropriate to the workpiece material.