It is a CNC Tools/End Mill/Drill Bit/Carbide Tool/Router Bit. Material: Solid Carbide. Cutting Angle: 15 degree. Type: 2 Flutes Straight Grooves Engraving Bit. Application: Mainly Used For The Engraving And Marking Of Stainless Steel, Medium Density Fiberboard, Wood Panels And Many Other Soft Gummy Materials.