Guhring 9006580024900 Cobalt Jobber Drill Bit Wire 40

Product Description

The GUHRING 9006580024900 is a cobalt jobber-length drill bit in wire gauge size 40, with a decimal diameter of 0.0980 inches and an overall length of 2.25 inches. Finished with a Titanium Nitride (TiN) coating, it is designed for high-performance drilling in ferrous materials including cast iron and steel. The 130-degree split point and parabolic flute geometry work together to reduce thrust, clear chips efficiently, and maintain hole accuracy at depth. This bit is manufactured to DIN 338 standards and belongs to GUHRING Series 658, targeting production environments and trade professionals who require consistent performance in demanding materials.

This drill bit is suited for applications in metalworking, fabrication, and maintenance trades where wire gauge hole sizes are required in steel and cast iron workpieces. The parabolic flute design supports deeper drilling with improved chip evacuation, making it appropriate for CNC drilling operations, manual drill presses, and handheld power tools in shop or field settings. The straight-cylindrical shank seats in standard drill chucks without modification. Primary workpiece material codes are K (cast iron) and P (steel), consistent with DIN material classification.

Key Features

• Wire size 40 diameter: 0.0980 inches with a diameter tolerance of -0.014 to 0.000 mm
• Cobalt construction with TiN coating for extended tool life in ferrous materials
• 130-degree point angle with web-thinned, tapered web for reduced entry thrust
• Parabolic flute profile at 5xD flute-to-diameter ratio for efficient chip removal
• Right-hand cut, straight-cylindrical shank compatible with standard drill chucks
• Manufactured to DIN 338 specification for dimensional consistency

Compatibility

Designed for use in cast iron and steel workpieces (DIN material codes K and P). Compatible with any drill chuck accepting a 0.0980-inch straight-cylindrical shank. Suitable for use in CNC machining centers, drill presses, and standard handheld power drills.

Installation Notes

Secure the shank fully in the drill chuck before operation and verify runout is within acceptable limits to avoid premature wear. De-energize and lock out any machine tool before changing bits. Cutting speeds and feeds should be selected based on workpiece material hardness and machine capability; consult GUHRING cutting data references for Series 658. Coolant-through is not supported on this bit, so external coolant or cutting fluid application is recommended for prolonged drilling cycles in steel.