Osg 8556430 Square End Mill 0.1181 in 4 Flute Solid Carbide

Product Description

The OSG 8556430 is a solid carbide square end mill designed for precision material removal in milling applications. With a 0.1181-inch (3 mm) cutting diameter and a 0.2362-inch (6 mm) shank diameter, this stub-length tool is built for rigidity in tight-tolerance work. It runs 4 flutes with a straight flute geometry, variable helix, and variable index for improved chip evacuation and reduced chatter. The Duarise coating provides wear resistance suited to demanding cutting conditions. Machinists and tooling professionals working in CNC milling environments will find this tool ready for direct spindle use.

This end mill is suited for precision milling operations in manufacturing, job shop, and production environments. The stub length classification makes it appropriate where shorter reach reduces deflection. The centercutting design allows plunge entry in addition to peripheral cutting. Right-hand cut and right-hand flute direction are standard for conventional CNC milling setups. The 4.5 mm length of cut and 45 mm overall length position this as a compact, high-rigidity tool for small-diameter slot milling, profiling, and finishing passes in ferrous and non-ferrous materials.

Key Features

• Solid carbide micrograin construction for hardness and edge retention
• Duarise coating for improved wear resistance and surface lubricity
• Variable helix and variable index geometry to reduce harmonic vibration
• Centercutting design allows plunge milling capability
• Straight flute configuration suited to precision finish milling
• Stub length for maximum rigidity in small-diameter applications

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill for CNC milling machines accepting a 0.2362-inch (6 mm) shank, Series 8206.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with CNC spindle toolholding systems. Ensure the spindle is fully powered down and the machine is in a safe state before changing tooling. Use an appropriate collet or end mill holder sized for the 0.2362-inch shank diameter and torque to the toolholder manufacturer specification. Inspect the cutting edges for chips or wear before each use.