7 Machines and machine tools for quarrying, mining, boring, tunnelling, construction and demolition; Rock drilling machinery, power operated top hammer rotary percussive drills; Drill bits, button bits and cross bits, drill rods, extension drill rods, reamers, shank adaptors, and couplings, all for rock drilling machines; Heavy duty demolition machinery, power operated hydraulic breakers; Tools with chisel, point and blunt working ends, rammers, drivers, and couplings, all for heavy duty demolition machines; Power operated hand-held demolition and construction machinery, mechanically powered hammers, power operated pick hammers, power operated chipping hammers, power operated concrete breakers and clay diggers; Moil points, chisels, asphalt cutters, tarmacadam cutters, clay spades, and couplings, all for power operated hand-held demolition and construction machines; and parts for all the aforesaid goods