Guhring 9002050031000 Jobber Drill Bit 3.1 Mm Hss

Product Description

The GUHRING 9002050031000 is a jobber length twist drill bit designed for general-purpose drilling in metalworking applications. Manufactured from M2 high speed steel with an oxide coating, it measures 3.1 mm in diameter (0.1220 inches decimal equivalent) with an overall length of 65 mm and a flute length of 36 mm. The 118-degree standard point angle and web-thinned, tapered web configuration reduce entry force and improve chip clearance. Right-hand spiral flutes with a regular helix provide consistent chip evacuation in cast iron and steel. Licensed electricians, machinists, pipefitters, and HVAC fabricators working with sheet metal or structural steel components reach for this size regularly.

This drill bit is suited for production and maintenance drilling in ferrous metals, including cast iron and mild steel. The straight-cylindrical shank accepts standard 3-jaw drill chucks on corded drills, drill presses, and CNC machining centers. Its jobber length format — a flute-to-diameter ratio of 5xD — gives it the reach needed for most through-hole applications without sacrificing rigidity. Sold individually, it fits standard shop tooling inventory practices where single-unit replacement is preferred over bulk sets.

Key Features

• M2 high speed steel construction withstands heat generated during steel and cast iron drilling
• Oxide coating provides light surface protection and reduces friction during cutting
• 118-degree standard point angle for use on flat and curved ferrous workpieces
• Web-thinned tapered web reduces thrust requirement at drill entry
• Straight-cylindrical shank fits standard drill chucks without adapters
• Conforms to DIN 338 specification for consistent tolerancing and interchangeability

Compatibility

Designed as a DIN 338 Series 205 jobber length drill bit compatible with standard 3-jaw drill chucks accepting a 3.1 mm straight-cylindrical shank. Suitable for drilling cast iron and steel workpieces per primary workpiece material ratings K and P.

Installation Notes

Secure the shank fully in the chuck and verify runout before drilling. Power down and de-energize any drill press or CNC spindle before changing bits. Apply appropriate cutting fluid when drilling steel to extend tool life and maintain dimensional accuracy. Dispose of worn or chipped bits per applicable shop safety procedures.