Jackhammer is V.E.N.O.M.'s quintessential bad-guy truck from the first series of M.A.S.K. The 1985 Ford Bronco changes into a turreted battle wagon, driven by black-knit-cap-wearing mook Cliff Dagger who uses the Torch mask.

M.A.S.K. (Mobile Armored Strike Kommand) was a unique toyline pioneered by Kenner in 1985, capitalizing on the rising themes of action features and transformation in the action figure market. The series pits the heroic M.A.S.K. led by wealthy philanthropist Matt Trakker, against the renegade V.E.N.O.M. (Vicious Evil Network of Mayhem), led by turncoat tyrant Miles Mayhem. Running concurrent to a two-season cartoon by DIC, the series produced four waves of toys before foundering.