Guhring 9002050004700 Jobber Drill Bit 0.47mm Hss

Product Description

The GUHRING 9002050004700 is a high speed steel jobber-length drill bit designed for precision drilling in metalworking applications. Built to DIN 338 standards, it features a 0.47 mm diameter with a 118-degree standard point angle and a bright, uncoated finish. The two-flute spiral design with a tapered web and web-thinned point promotes clean entry and efficient chip evacuation. With an overall length of 20.00 mm and a flute length of 5.00 mm, this bit is suited for controlled, short-depth drilling. The M2 high speed steel construction provides the hardness and wear resistance expected for general-purpose ferrous metal work.

This drill bit is intended for general-purpose drilling in cast iron and steel. Its straight-cylindrical shank and compact dimensions make it compatible with standard drill chucks on benchtop drill presses, CNC machining centers, and handheld power drills where precision small-diameter holes are required. It follows a regular spiral type with a 5xD flute-to-diameter ratio, suited for shallow-depth applications within its rated maximum drilling depth of 4.30 mm. It is commonly used by machinists and tool-and-die technicians working with fine-tolerance small-diameter holes in ferrous stock.

Key Features

• 0.47 mm diameter with a matching 0.47 mm straight-cylindrical shank for minimal runout
• 118-degree standard point angle with web-thinned, tapered web geometry for clean entry
• M2 high speed steel construction for hardness and durability in ferrous materials
• Bright, uncoated finish — no coating buildup to affect tight dimensional tolerances
• Two-flute regular spiral design for efficient chip removal in short-depth drilling
• Manufactured to DIN 338 specification for consistent dimensional conformance

Compatibility

Designed for drilling cast iron and steel workpieces. Rated for general-purpose use per DIN 338 specification, covering drill bit sizes in the 0.00 mm to 2.00 mm range. Maximum drilling depth is 4.30 mm.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with small-diameter tooling. Always confirm the drill chuck capacity can accommodate a 0.47 mm shank before mounting. Secure the workpiece firmly and run at appropriate spindle speeds for the material and diameter to avoid bit deflection or breakage. Coolant-through is not supported on this bit; use external cutting fluid when drilling steel to extend tool life.