Nowadays, the most commonly used in the processing industry is the tungsten steel corner radius end mill.
More than 90% of the customers who purchase the corner radius end mill will choose the tungsten steel material,
and 9% of the customers choose the HSS material, 1% choose other.
But after a while, 3.5% of the customers who bought HSS material came back to choose the tungsten steel endmills.
It is because the corner radius end mill made of tungsten steel has high hardness, does not deform when it is 500 degrees,
and has high hardness when it is 1000 degrees.
Therefore, the tungsten steel corner radius end mill is the tool that first selects in machining.