Kennametal 6413146 Square End Mill 0.625in 4 Flute Carbide

Product Description

The KENNAMETAL 6413146 is a solid carbide square end mill engineered for high-performance material removal in demanding machining environments. Part of the HPHV series, it features a 0.625 inch diameter cutting edge with a 3 inch length of cut and a 38-degree helix angle. The variable index design reduces harmonic vibration during aggressive cuts, and the AlTiN coating provides thermal resistance and extended tool life when running at elevated speeds. This is a single-end, right-hand cut tool with spiral flutes, suited for CNC machining centers running steel, stainless steel, cast iron, and hardened materials. Material grade KCPM15 supports the wear demands of these workpiece types. Installation and operation require a qualified machinist or CNC programmer.

This end mill is designed for milling applications in steel, stainless steel, cast iron, and hardened materials (ISO material codes P, M, K, and H). The HPHV series targets high-productivity roughing and finishing operations where tool life, chip evacuation, and chatter control are critical. With center-cutting capability and a 0.625 inch shank diameter matching the cutting diameter, it seats directly in standard collets or end mill holders without a reducing adapter. It is well suited for deep-pocket and full-width slotting passes where a 3 inch length of cut is required.

Key Features

• 0.625 inch cutting diameter with 3 inch length of cut for deep reach applications
• 38-degree spiral helix angle promotes efficient chip evacuation and reduced cutting forces
• Variable index flute spacing minimizes chatter and harmonic vibration
• AlTiN coating (KCPM15 grade) delivers heat resistance and extended wear life in ferrous materials
• Center-cutting design allows plunge entry without a pre-drilled pilot hole
• Right-hand cut and right-hand flute geometry compatible with standard CNC spindle rotation

Compatibility

Designed for use in steel, stainless steel, cast iron, and hardened materials as part of the KENNAMETAL HPHV series. Fits standard 0.625 inch collets and end mill holders. No specific machine model compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist or CNC programmer. Before mounting, ensure the machine spindle is fully stopped and locked out per shop safety procedures. Seat the shank fully into the holder and torque the retention mechanism per the toolholder manufacturer specification. Confirm runout with a dial indicator before beginning the cut, as excessive runout accelerates edge wear on carbide tooling.