Guhring 9024640089000 Jobber Drill Bit 8.9mm Carbide

Product Description

The GUHRING 9024640089000 is a jobber length drill bit engineered for precision drilling in aluminum and other non-ferrous materials. Built from solid carbide grade K40 and finished with a FIREX coating, it delivers extended tool life and reduced built-up edge compared to uncoated carbide. The bit measures 4.92 inches overall length with a 8.9 mm (0.3504 inch) diameter, a 118-degree faceted point angle, and a web-thinned tip that reduces thrust and improves chip evacuation at entry. It is part of the Guhring Series 2464 and conforms to DIN specification standards. Machinists and tool-and-die professionals select this bit for general-purpose CNC and manual drilling operations where dimensional accuracy and coating durability are priorities.

This drill bit is suited for production and job shop environments where aluminum, non-ferrous alloys, and similar materials classified under workpiece material code N are being machined. The straight-cylindrical shank seats in standard drill chucks or collet holders without modification. With a flute-to-diameter ratio of 5xD, a maximum drilling depth of 2.663 inches (67.65 mm), and a 2-flute spiral configuration, it handles through-hole and blind-hole applications in both vertical machining centers and bench drill presses. Coolant-through is not supported, so flood or mist cooling at the workpiece surface is the appropriate method when heat buildup is a concern.

Key Features

• Solid carbide K40 grade substrate for rigidity and wear resistance in non-ferrous machining
• FIREX coating reduces friction and extends coating life compared to standard TiN or TiAlN finishes
• 118-degree faceted point with web thinning for reduced entry thrust and improved centering
• Right-hand cut, regular spiral, 2-flute geometry supports efficient chip removal
• Straight-cylindrical shank fits standard drill chucks and ER collet systems without adapters
• DIN specification compliance ensures dimensional interchangeability with other DIN-standard tooling

Compatibility

Designed for use in standard drill chucks and collet holders accepting an 8.9 mm straight-cylindrical shank. Falls within the Series 2464 Guhring product family. No specific machine model compatibility was provided in the product data.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist familiar with carbide tooling handling procedures. Carbide is brittle and should not be subjected to side loads or interrupted cuts outside the tool's rated parameters. Ensure the spindle and chuck are fully powered down and locked out before inserting or removing the bit. Verify shank seating depth and chuck runout before beginning a drilling cycle, as excessive runout accelerates edge wear on carbide tooling.