Answer
Jan 13, 2026 - 11:08 AM
The best end mill for cutting steel is typically a carbide end mill with a Spektra , ZrN or AlTiN coating, as these provide high hardness and heat resistance. A variable flute design with 4 flutes is often preferred for improved chip evacuation and reduced vibration. Always choose an end mill specifically rated for use with steel for optimal performance and tool life.End Mills come in many different shank sizes from 1/8 and up to 1/2 inch . It's always good to check out the specifications and use for instructions so you don't burn or snap the bit off.
