47-401-5 Uncoated 4-Flute End Mill 1" x 4" OALUncoated HSS 4 Flute Single End Mill High speed steel (HSS) provides good wear resistance. It is commonly used for general purpose applications on both ferrous and nonferrous materials. Uncoated tools do not feature supportive treatments on the cutting edge. They are are used at reduced speeds for general applications on nonferrous metals. Non Center Cutting applications have peripheral teeth allowing for the user to side (radial) cut or contour an