2pcs HSS 6mm 4 Flutes End Mill Metal Cuttting Engraving Milling Machine Bit CNC Tool Description: An end mill is a type of milling cutter, a cutting tool used in industrial milling applications. It is distinguished from the drill bit in its application, geometry, and manufacture. While a drill bit can only cut in the axial direction, a milling bit can generally cut in almost all directions. Features: This set of end mills are made from high speed steel for good hardness and the cutting edge is quite sharp. 6mm cutting edge and 6mm standard shank diameter would fit for many milling machines or CNC cutting machines. These two milling bits can generally cut in almost all directions, including cutting axially. End mills are used in milling applications such as profile milling, tracer milling, face milling, and plunging. Usually these end mills are used to cutting iron, copper, aluminum, plastic and many other soft materials. Specifications: Material: HSS Cutting Edge Dia.: 6mm / 0.23" Flute: 4 Shank Dia.: 6mm / 0.23" Cutting Edge Length: 13mm / 0.51" Overall Length: 57mm / 2.24" Cutting On: Iron, copper, aluminum, plastic, etc Quantity: 2pcs Package Includes: 2 x End Mills Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.