This Cam Gear Lock/Timing Belt Installation Tool precision tool makes the job of replacing or setting up your new Timing Belt as easy as 1,2,3. It's designed for Mitsubishi 4G63 engines. Simply set the Cam Gear Lock Tool in the center between the two Cam Gears and you will be able to set your new Timing Belt with no hassle. This tool has a small window right in the middle of it, so you're able to check the timing marks on the Cam Gear making the installation fail proof. It's made from anodize black 6061 aircraft grade aluminum. Installation sheet included.