Guhring 9005020120000 Extra Length Drill Bit Hss

Product Description

The GUHRING 9005020120000 is a high speed steel extra length drill bit engineered for deep hole drilling applications. It carries a 0.4724-inch diameter, a 130-degree drill point angle, and a parabolic flute geometry that evacuates chips aggressively in long-reach cuts. The overall length is 295.00 mm (approximately 11.614 inches), with a flute length of 8.071 inches (205.00 mm) and a maximum drilling depth of 7.362 inches (187.00 mm). The shank is straight-cylindrical, matching the 0.4724-inch bit diameter, and the tool is left uncoated. It is manufactured to DIN 1869 standards and classified as a high-performance grade bit. HVAC fabricators, pipefitters, machinists, and maintenance mechanics install this type of tooling in production or field drilling setups.

This drill bit is designed for deep hole drilling in aluminum and similar non-ferrous and ferrous workpiece materials. Its parabolic flute profile and web-thinned, tapered web configuration reduce thrust and improve chip flow at extended depths. The 15xD flute-to-diameter ratio makes it well suited for through-hole and blind-hole applications where standard-length drills cannot reach. It cuts in a right-hand direction and is intended for use in drill presses, CNC machining centers, or hand-held power tools with an appropriate collet or chuck capable of accepting a 0.4724-inch straight shank.

Key Features

• DIN 1869 extra length specification for deep hole reach up to 7.362 inches (187.00 mm)
• Parabolic flute geometry promotes aggressive chip evacuation in long-reach cuts
• Web-thinned tapered web reduces drill point thrust and improves entry accuracy
• High speed steel construction — uncoated, suitable for aluminum and similar materials
• 130-degree drill point angle optimized for general-purpose and deep hole entry
• Right-hand cutting, straight-cylindrical shank for standard chuck or collet mounting

Compatibility

Designed as an OEM-style replacement and standard tooling option conforming to DIN 1869 for extra length straight-shank drill bits used in deep hole drilling setups across metalworking and fabrication applications.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or skilled tradesperson familiar with rotating cutting tools. Ensure the machine spindle is fully stopped and the tool holder is secure before inserting or removing the bit. Verify the chuck or collet is rated for the 0.4724-inch shank diameter and that cutting speeds and feeds are appropriate for the workpiece material per standard machining practice. Do not exceed the rated maximum drilling depth of 7.362 inches without verifying adequate chip clearance and coolant strategy.