Osg 414-1575 Square End Mill 0.1575 in 4 Flute Solid Carbide

Product Description

The OSG 414-1575 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 0.1575 inch (4.00 mm) mill diameter with a 0.315 inch (8.00 mm) length of cut, making it well suited for tight-tolerance slotting, profiling, and plunge-cutting tasks. The four-flute, spiral configuration with a 30-degree helix angle promotes efficient chip evacuation and surface finish quality. Micrograin carbide construction provides wear resistance and rigidity at small diameters. This is a centercutting tool, capable of ramping and plunge entry without a pre-drilled hole.

The 414-1575 fits stub-length milling applications where rigidity is a priority over reach. It is used in CNC machining centers and manual knee mills for ferrous and non-ferrous materials. The right-hand cut and right-hand flute geometry match the standard spindle direction on most milling machines. The 4.00 mm shank diameter matches the mill diameter, allowing use in collet chucks, end mill holders, or hydraulic toolholders with the appropriate bore size. Machinists working on close-tolerance features in steel, aluminum, and similar materials will find this tool applicable to a wide range of production and toolroom environments.

Key Features

• 0.1575 inch (4.00 mm) mill diameter with 0.315 inch length of cut for compact, rigid cutting
• Four-flute spiral design with 30-degree helix angle for balanced chip load and surface finish
• Solid micrograin carbide construction for wear resistance and dimensional stability
• Centercutting geometry allows direct plunge entry and ramp milling without pre-drilling
• Right-hand cut, right-hand flute — compatible with standard CNC and manual spindle rotation
• Stub-length profile maximizes rigidity and minimizes deflection at small diameters

Compatibility

Designed as an OEM-style solid carbide square end mill in the OSG Series 414 stub-length line, compatible with standard collet chucks and end mill holders with a 4.00 mm bore. Suitable for use across CNC machining centers and manual mills operating on ferrous and non-ferrous workpiece materials.

Installation Notes

Installation is performed by a machinist using an appropriate collet or end mill holder sized for a 4.00 mm shank. Ensure the spindle is fully stopped and the machine is in a safe, locked state before changing tooling. Verify runout after installation using a dial indicator before beginning a cut. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and depth of cut being used.