Guhring 9005300047600 Jobber Drill Bit 3/16 in Firex Pm

Product Description

The GUHRING 9005300047600 is a jobber length twist drill bit designed for high-performance drilling in ferrous materials including cast iron and steel. Built from PM-ASP-60 powdered metal, the bit carries a FIREX coating that improves heat resistance and extends tool life under demanding cutting conditions. It features a 130-degree cone relief point for aggressive entry, a parabolic flute geometry for efficient chip evacuation, and a web-thinned, tapered web configuration that reduces thrust and improves centering. With a 3/16 inch diameter and a 3-3/8 inch overall length, this bit is suited for production and maintenance drilling applications. It is installed and used by machinists, industrial maintenance technicians, and trade professionals working with steel and cast iron substrates.

This drill bit is intended for right-hand cutting operations in materials classified under DIN material codes K and P, which correspond to cast iron and steel. The parabolic flute design with a 5xD flute-to-diameter ratio supports deeper chip clearance without packing, making it effective for through-hole and moderate-depth drilling in both manual and CNC-fed setups. The straight-cylindrical shank fits standard drill chucks and collet holders sized for 3/16 inch tooling. Conforming to DIN 338, it integrates into shops that source tooling to European standards.

Key Features

• PM-ASP-60 powdered metal substrate for hardness and wear resistance in ferrous materials
• FIREX coating improves thermal resistance and reduces tool wear at elevated cutting speeds
• 130-degree cone relief point with web thinning reduces entry thrust and improves hole location
• Parabolic flute geometry with 5xD ratio promotes efficient chip evacuation in steel and cast iron
• Straight-cylindrical shank fits standard drill chucks and collet holders without special toolholding
• Conforms to DIN 338 for consistent dimensional and geometric tolerances

Compatibility

Designed for use in steel and cast iron applications (DIN material codes P and K). Fits any drill chuck or collet holder accepting a 3/16 inch straight-cylindrical shank. Suitable for both manual drill press and CNC machine tool use where DIN 338 jobber length tooling is specified.

Installation Notes

Secure the shank fully in the chuck or collet to the recommended grip depth before operation. Ensure the spindle is fully stopped and machine power is off when loading or removing the bit. Use appropriate cutting fluid or coolant for the workpiece material to maximize coating life, noting that this bit does not support internal coolant through. Inspect the cutting edges and coating condition before each use and replace when wear affects hole quality or dimensional tolerance.