CAT D11T Track Type (JEL Design) Tractor 1:50 scale Diecast Masters Diecast Model This CAT D11T Track Type (JEL Design) Tractor diecast model is yellow & features working bucket, ripper, tracks, blade. It is made by Diecast Masters & is 1:50 scale (approx. 23cm / 9.1in long).