The Rock Chucker Supreme Press is a strong and versatile single stage press that features cast iron construction, ambidextrous handle and a 4" opening for today's longer cartridges. It can even be upgraded to a progressive press with the addition of the optional Piggyback-4 Conversion Kit. The Rock Chucker Supreme Master Kit includes the Rock Chucker Supreme press, 505 scale, Uniflow Powder Measure, Speer Reloading Manual #13, Hand Priming Tool, Hex Key Set, Case Loading Block, Case Lube Kit, Powder Funnel and Deburring Tool. Dies and shellholders sold separately.