Osg 414-2188 Square End Mill 7/32 in 4 Flute Solid Carbide

Product Description

The OSG 414-2188 is a solid carbide square end mill designed for precise milling operations in metalworking and machining applications. Built from micrograin solid carbide, it delivers hardness and wear resistance suited to demanding cutting conditions. The tool features a 7/32-inch (0.2188-inch) mill diameter, a 7/16-inch (0.4375-inch) length of cut, and a 2-inch overall length. With 4 spiral flutes and a 30-degree helix angle, it promotes efficient chip evacuation and smooth cutting action. The 1/4-inch shank diameter fits standard collets and toolholders commonly found in CNC machining centers and manual mills. This is a stub-length, uncoated end mill intended for installation and use by machinists and toolroom professionals.

This end mill is suited for slot milling, profiling, and peripheral cutting in ferrous and non-ferrous materials. The centercutting design allows direct plunge entry, adding versatility for pocket milling operations. The right-hand cut and right-hand flute configuration is standard for conventional CNC and manual mill setups. Its stub-length profile provides added rigidity, making it appropriate for applications where tool deflection must be minimized, such as close-tolerance slotting or finishing passes in tight workpiece features.

Key Features

• Micrograin solid carbide construction for hardness and edge retention
• 4 spiral flutes with 30-degree helix angle for efficient chip evacuation
• Centercutting design allows direct plunge milling
• Stub-length profile increases rigidity and reduces deflection
• Right-hand cut and right-hand flute, compatible with standard spindle rotation
• Uncoated finish suitable for use with cutting fluids or dry machining depending on material

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for standard 1/4-inch collet or toolholder systems in CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the shank fully into the collet or toolholder to the recommended engagement depth and torque the retention hardware per the toolholder manufacturer specification. Verify runout with a dial indicator before beginning a cut, particularly for close-tolerance work.