Guhring 9042500254000 Square End Mill 1 in 4 Flute Carbide

Product Description

The GUHRING 9042500254000 is a solid carbide square end mill engineered for high-performance milling in demanding industrial applications. With a 1 inch cutting diameter, a 2.25 inch length of cut, and a 5 inch overall length, this tool is built for rigidity and precision. It features a FIREX coating for extended tool life in abrasive and high-temperature cutting conditions. The variable helix spiral flute geometry reduces chatter and improves chip evacuation. Installation and use are handled by machinists and CNC operators working with vertical or horizontal milling machines.

This end mill is suited for roughing and finishing operations in steel, cast iron, stainless steel, and hard materials. The 4-flute, right-hand spiral flute design provides efficient chip removal and surface finish quality across a range of material grades. The Weldon flat shank with a 1 inch shank diameter provides secure tool holding and minimizes pullout risk in heavy-cut scenarios. This is a single-end, center-cutting tool, meaning it can be used for both peripheral milling and direct plunge entry.

Key Features

• 1 inch cutting diameter with h10 mill diameter tolerance for consistent fit
• FIREX coating for heat and wear resistance in ferrous and hard material applications
• Variable helix design reduces vibration and chatter during cutting
• 4 right-hand spiral flutes with center-cutting capability for plunge entry
• Weldon flat shank with h6 shank diameter tolerance for secure tool holder engagement
• No coolant-through — designed for external coolant or dry machining setups

Compatibility

Designed for use in standard 1 inch Weldon-style end mill holders. Primary workpiece materials include cast iron and steel (ISO material codes K and P). Secondary applications include stainless steel, hard materials, and high-temp alloys (ISO codes H, M, and S). Part of the GUHRING Series 4250.

Installation Notes

This tool is installed by machinists using a Weldon flat-style end mill holder and a set screw torqued against the flat. Confirm runout with a dial indicator before beginning the cut. Ensure the milling machine spindle and tool holder are clean and free of debris before seating the shank. Follow the machine manufacturer and GUHRING Series 4250 application guidelines for appropriate feed, speed, and depth-of-cut parameters for the target workpiece material.