... parts for the rock drill jumbo/boomer itself but particularly for the hydraulic drifters. These include spare parts such as rotation chuck, piston, shaft, shank bushings, piston bush, piston, cover, holder, o-ring, shim, screw, nut, side bolt, flushing head, stop ring, rod, hydro motor, seal kits, bushings, couplings, guiding rings, diaphragms, hose drum, rope drum, slide bar, rope, couplings, filter, attachments, rubber cloth, plate, arm, limit switch, wiper, accumulator, and so on. Our company supplies repair kits and rubber goods for construction machines of leading world brands.