IMPACK JAW ROCK CONCRETE CRUSHER SHREDDER . Dresser impact breaker CRUSHER Machine size 44 this appears to have been the case in general for this set, rather than being a specific defect/misprint on my one in particula. Hi guys i have rock crusher excellent working conditionedcome with box for 20000 and loed in COVENTRY Details: rock, crusher, breaker, impack, concrete, .