Osg 409-0938 Square End Mill 3/32 in 4 Flute Solid Carbide

Product Description

The OSG 409-0938 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. With a 3/32 inch (0.0938 inch) mill diameter and four flutes, it delivers clean, accurate cuts in a compact form factor suited for fine-detail work. The micrograin carbide construction provides wear resistance and edge retention across a range of workpiece materials. The 15-degree helix angle and right-hand spiral flute geometry promote smooth chip evacuation during cutting. This tool is single-end and ships with a bright, uncoated finish. It is installed and used by machinists, tool-and-die professionals, and CNC operators working with precision milling equipment.

This end mill fits applications requiring small-diameter cutting in ferrous and non-ferrous metals, plastics, and composites. The 3/8 inch length of cut and 1/8 inch shank diameter make it appropriate for light finishing passes, slotting, and profiling in tight geometries. The regular-length profile suits standard milling setups where extended reach is not required. It is well-suited for CNC machining centers and manual mills where fine tolerances and small-feature work are common.

Key Features

• Solid micrograin carbide construction for durability and edge retention
• Four-flute design for improved surface finish and feed rate capability
• 15-degree helix angle with right-hand spiral flutes for efficient chip removal
• Center-cutting capable, allowing plunge entry into workpieces
• Bright/uncoated finish on 3/32 inch diameter cutting edge
• Single-end configuration in OSG Series 409

Compatibility

Designed as an OEM-style replacement or standard tooling option for milling operations requiring a 1/8 inch shank, 3/32 inch diameter square end mill in Series 409 configuration.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Ensure the machine spindle is fully powered down and locked out before changing tooling. Secure the 1/8 inch shank in a compatible collet or end mill holder tightened to the machine manufacturer's specifications. Verify runout and tool projection before beginning a cut to maintain dimensional accuracy and tool life.