Cylinder Boring and Milling Machines - RMC Engine. 15/5/2003 Dedicated to serving your engine rebuilding equipment needs, since 1957 Cylinder Boring and Milling Machines RMC-1550 Shown with Cummins NH block, optional spindle caddy and 3 axis DRO (Last Revision Date - May 15, 2003) (All prices, specifications, standard optional items and availability are subject to change without notice) …