Pro File - Round 3mm diameterThese durable and preicison made files are perfect for shaping both hard materials such as metal, carbon fiber and fiber reinforced plastic (FRP), and softer materials such as normal plastic parts. Both files feature a chrome coating which helps prevent the teeth from clogging with shavings. These files also feature superb durability and have a 3 6 times longer useful life than standard steel files. About the items: Length: 160mm Each file comes with