Gws 312603 Square End Mill 3/8 in 7 Flute Solid Carbide

Product Description

The GWS 312603 is a 7-flute solid carbide square end mill designed for high-performance milling in demanding machining environments. With a 3/8 inch cutting diameter and a 1-1/2 inch length of cut, this single-end tool is built for aggressive material removal while maintaining surface finish quality. The AlCrO-MAX coating provides enhanced heat and wear resistance, making it well suited for hard and abrasive workpiece materials. Machined from submicron carbide grade stock, it delivers the edge stability and rigidity required for production runs and precision work. The 38-degree right-hand helix promotes efficient chip evacuation in upcut flute geometry.

This end mill is used in CNC milling operations across job shops, tool rooms, and production machining environments. Its 7-flute design is optimized for finish milling and semi-finish passes where a higher flute count improves feed rates and surface quality. The standard length configuration and 3/8 inch square shank allow direct installation into collet chucks, ER collet systems, and end mill holders compatible with that shank diameter. It is suited for use on vertical and horizontal machining centers running harder ferrous and non-ferrous alloys where coating performance is a priority.

Key Features

• 7-flute geometry increases feed rate capability compared to 4- or 5-flute tools of the same diameter
• AlCrO-MAX coating delivers elevated heat resistance and extended tool life in hard materials
• Submicron solid carbide construction provides rigidity and sharp, consistent cutting edges
• 38-degree right-hand helix with upcut flute direction promotes positive chip evacuation
• Centercutting design allows plunge and ramp entry operations
• Series 2215 standard length - 4 inch overall length with 3/8 inch shank diameter

Compatibility

Designed as an OEM-style replacement or direct-fit tool for CNC machining setups using 3/8 inch collet chucks, ER collet holders, or end mill holders with a 3/8 inch bore. No specific machine model compatibility was stated in the product data.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. The machine spindle must be powered off and the tool change interlock engaged before inserting or removing the end mill. Ensure the collet or holder bore is clean and free of chips before seating the shank. Verify runout with a dial indicator after installation and before initiating the first cut to protect both the tool and the workpiece.