Model DD tsakiyar latch elevators tare da murabba'i kafada sun dace don sarrafa tubing casing, drill collar, drill tube, casing and tubing. Nauyin yana daga 150 ton 350. Girman girman ya fito daga 2 3/8 zuwa 5 1/2 in. An tsara samfuran kuma an ƙera su bisa ga buƙatu a cikin ƙayyadaddun API Spec 8C don Hakowa da Kayan Aikin Haɓakawa.