Iscar 3398299 Square End Mill 0.5 in 4 Flute Solid Carbide

Product Description

The ISCAR 3398299 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. It features a 0.5-inch cutting diameter, a 0.625-inch length of cut, and a 2.5-inch overall length with a 0.5-inch shank diameter. The four-flute geometry with a 38-degree helix angle and spiral flute design promotes efficient chip evacuation and smooth cutting action. A TiAlCN finish increases surface hardness and thermal resistance, extending tool life in demanding cuts. The submicron grain carbide substrate provides toughness and wear resistance. This end mill is center-cutting, allowing direct plunge entry into the workpiece.

This end mill is suited for general-purpose and high-efficiency milling in ferrous and non-ferrous metals, including steel, stainless steel, and cast iron, as well as harder alloys. It is intended for use in CNC machining centers and manual mills where consistent dimensional accuracy is required. The right-hand cut and right-hand flute configuration make it compatible with standard spindle setups. Variable index flute spacing helps reduce chatter and vibration during aggressive side milling or full-width slotting passes.

Key Features

• Solid carbide construction with submicron grain substrate for improved wear resistance and edge retention
• TiAlCN coating provides thermal and oxidation resistance for extended tool life
• 38-degree helix angle with spiral flute geometry promotes efficient chip flow
• Variable index flute spacing reduces harmonic vibration and chatter
• Center-cutting design enables direct plunge milling without a pilot hole
• Right-hand cut and right-hand flute for standard CNC and manual mill compatibility

Compatibility

Designed as a standard 0.5-inch shank square end mill for use in CNC machining centers, vertical mills, and toolholders accepting 0.5-inch shank tooling.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the shank fully into the collet or end mill holder to the recommended gauge length and torque the retention mechanism per the toolholder manufacturer specifications. Inspect the cutting edges for chips or damage before each use.