Guhring 9006640033000 Jobber Drill Bit 3.3mm Hss Tin

Product Description

The GUHRING 9006640033000 is a jobber length drill bit designed for general-purpose drilling in cast iron and steel. Built from high speed steel with a titanium nitride (TiN) coating, it offers improved surface hardness and wear resistance over uncoated HSS tooling. The bit measures 3.30 mm in diameter with an overall length of 65 mm and a flute length of 36 mm. The left-hand cutting direction makes it a specialized choice for specific machining setups where conventional right-hand rotation is not suitable. The 118-degree point angle and web-thinned tip reduce entry force and improve centering on ferrous workpieces.

This drill bit is suited for metalworking and machining operations in manufacturing, maintenance, and repair environments. Its general-purpose grade and DIN 338 compliance make it a standard specification item for shops working with cast iron and steel stock. The straight-cylindrical shank fits conventional drill chucks without adapters. The 5xD flute-to-diameter ratio supports chip evacuation in typical depth applications. Licensed machinists, tool-and-die technicians, and maintenance mechanics are the primary users of this tooling.

Key Features

• Left-hand cut spiral flute design for specialized machining setups
• Titanium nitride (TiN) coating for extended wear life on ferrous materials
• Web-thinned 118-degree cone relief point for reduced thrust and improved centering
• DIN 338 standard compliance for consistent dimensional tolerances
• Straight-cylindrical shank with h8 diameter tolerance for reliable chuck fit
• Regular spiral type with 2 flutes for efficient chip removal in cast iron and steel

Compatibility

Designed as an OEM-specification jobber length drill bit for general-purpose drilling in cast iron and steel workpieces, compatible with any standard drill chuck accepting a 3.30 mm straight-cylindrical shank.

Installation Notes

Installation and use of this tooling should be performed by qualified machinists or maintenance personnel familiar with rotating cutting tools. Ensure the machine spindle is fully stopped and power is locked out before inserting or removing the bit from the chuck. Inspect the TiN coating and cutting edges before use — do not run a chipped or damaged bit. Secure the shank fully in the chuck to the recommended grip depth to prevent slippage or runout during operation.