Guhring 9024640079000 Jobber Drill Bit 7.9mm Carbide

Product Description

The GUHRING 9024640079000 is a jobber-length drill bit engineered for precision drilling in aluminum and other non-ferrous materials. Built from solid carbide grade K40, it carries a FIREX coating that improves surface hardness and heat resistance during high-speed cutting operations. The bit measures 4.61 inches overall length with a 2.95-inch flute length, ground to a 118-degree faceted point for clean entry and reduced walking. The straight-cylindrical shank and right-hand spiral flute geometry make it compatible with standard drill chucks and CNC toolholding systems. This bit is suited for machinists, tool-and-die shops, and maintenance professionals who need consistent, tight-tolerance hole quality in production or job-shop environments.

The 9024640079000 belongs to GUHRING Series 2464, a general-purpose carbide drill line designed for a 5xD flute-to-diameter ratio. Primary workpiece material is aluminum, designated material code N, though the solid carbide construction and FIREX coating also support drilling in other non-ferrous and composite materials at appropriate feeds and speeds. The bit accepts standard straight-cylindrical chuck setups and does not require coolant-through toolholding, making it practical for bench drilling, VMC, and gang-drilling applications.

Key Features

• Solid carbide K40 grade construction for rigidity and wear resistance in non-ferrous drilling
• FIREX coating extends tool life by reducing heat buildup and surface adhesion
• 118-degree faceted drill point with web thinning for reduced thrust and cleaner entry
• Right-hand regular spiral flute promotes efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks and collet systems
• Diameter tolerance of -0.012 to 0.000 mm supports close-tolerance hole requirements

Compatibility

Designed as a general-purpose jobber-length drill bit within the GUHRING Series 2464 line, sized for the 7.00 to 8.00 mm diameter range. Fits standard straight-shank drill chucks and ER-style collet holders used in manual drill presses, VMCs, and CNC lathes.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with cutting tool setup and machine operation. Always power down and lock out the spindle before loading or unloading the bit from the chuck or collet. Inspect the cutting edges and coating condition before each use — carbide is brittle and should not be used if chipped or cracked. Follow machine manufacturer feed and speed recommendations for carbide tooling in the target workpiece material.