Milling

The main difference between Drill / End Mill styles is the point geometry. They are defined by how the flutes are designed on the end of the tool, using geometry typically seen on either an end mill or a drill. While mill style tools follow the features of an end mill or chamfer mill, the drill style geometry uses an S-gash at the tip. This lends strength to the tip of the tool, while giving it the ability to efficiently and accurately penetrate material axially. While both styles are capable of OD milling, mill style tools will be better for chamfering operations, while drill style will excel in drilling