Model DD center latch lifti tse nang le mahetla a lisekoere li loketse ho tšoara casing ea li-tubing, molala oa ho phunya, phala ea ho phunya, casing le li-tubing. Mojaro o tloha ho lithane tse 150 le lithane tse 350. Boholo bo tloha ho 2 3/8 ho isa ho 5 1/2 in. Lihlahisoa li entsoe le ho etsoa ho latela litlhoko tsa API Spec 8C Specification for Drilling and Production Hoisting Equipment.