Earth working tip and adapter construction

An earth working tip and adapter combination constructed with capacity to withstand great loading in use while utilizing a relatively small amount of unusable construction material such that when the tip is worn and replaced, valuable material is not discarded therewith. The tip member includes a pair of transversely disposed converging ribs formed internally of a closed cavity. The adapter member includes a pair of externally disposed converging tapered grooves adapted for mating engagement with the ribs of the tip member. In operative orientation, the respective load bearing surfaces of the ribs and grooves are disposed substantially normally to the direction of the working loads applied such that such loads are transmitted uniformally from the ripper tip to the adapter without bearing upon the pin holding means used to retain the tip upon the adapter.