CAT D6 T XW VPAT Track-Type Tractor 1:50 scale Diecast Masters Diecast Model This CAT D6 T XW VPAT Track-Type Tractor diecast model is yellow & features working ripper, tracks, blade. It is made by Diecast Masters & is 1:50 scale (approx. 14cm / 5.5in long).