Kennametal 6676943 Square End Mill 0.625 in 4 Flute Altin

Product Description

The KENNAMETAL 6676943 is a solid carbide square end mill designed for high-performance metal removal in demanding machining environments. Built to the H1TE series standard, this single-end mill features a 360 variable helix geometry with variable index spacing, which reduces harmonic vibration and chatter during cuts. The AlTiN coating enhances heat resistance and tool life when cutting ferrous and exotic alloys. With a 0.625-inch cutting diameter, 0.75-inch length of cut, and a 3.0-inch overall length, this tool suits general-purpose milling operations where consistent dimensional accuracy and surface finish are required. Licensed machinists and CNC setup technicians are the primary users of this tool.

This end mill is engineered for use on steel, stainless steel, cast iron, high-temperature alloys, and hardened materials. The centercutting capability allows plunge operations in addition to peripheral and slot milling. The right-hand cut with right-hand spiral flutes provides standard compatibility with conventional CNC machining centers and manual mills. The 0.625-inch shank diameter fits standard collets and end mill holders without adapters.

Key Features

• Solid carbide construction for rigidity and long tool life in hard materials
• AlTiN coating supports high cutting temperatures and extends wear resistance
• Variable helix (36-39 degrees) with variable index reduces chatter and vibration
• Centercutting design enables plunge milling and ramping operations
• 4 spiral flutes with right-hand cut and right-hand flute direction
• Single-end configuration with 1.3465-inch neck length for reach clearance

Compatibility

Designed for use on steel (P), stainless steel (M), cast iron (K), high-temperature alloys (S), and hardened materials (H) per ISO material group classifications. Fits standard 0.625-inch collets and end mill holders on CNC machining centers and manual milling machines.

Installation Notes

This tool is installed and operated by machinists or CNC technicians following shop-standard tooling procedures. Secure the shank fully in the collet or tool holder to the minimum clamping depth recommended by the holder manufacturer before operation. Inspect the tool edge for chips or wear before each use. Do not exceed the tool geometry limits for axial or radial depth of cut without consulting KENNAMETAL application data.