If you are workshop-based, it is easier to crimp with bench-mounted tools as you can hold the assembly in one hand while making the compression with the other hand. This bench mount will take the heads type 63VXPM, 64CGMP, 51MJ and all the type 51 tools. The picture shows the bench mount with a head fitted. If you are working onsite, have a look at our PlanKform Trestles and Mobile Grip System.