Abstract: A hammerless attachment assembly for releasably maintaining an adapter and replaceable part or tool of a two-part digging system in operable combination relative to each other. The hammerless attachment assembly includes an insert nonrotatably fitted within a recess defined on a side of the adapter nose portion and a rotatable fastener having a head portion and an externally threaded shank portion. A lengthwise portion of the extends through an opening having a closed margin defined in a side of the tool, with the opening in the side of the tool registering with the internally threaded bore in the insert when the tool is positioned on the adapter nose portion.

Abstract: A multipiece excavating tooth assembly including an adapter and an excavating tooth. A fastener releasably interconnects and maintains the excavating tooth in operable combination with the adapter. When assembled, an elongated nose portion of the adapter extends into a blind cavity defined by and which opens to a rear end of the excavating tooth. The adapter and tooth define a pair of fore-and-aft spaced stabilizing lands for advantageously transferring impact forces imparted to the tooth assembly during an excavating operation. Each stabilizing land on the tooth assembly is comprised of a pair of generally horizontal flats arranged in confronting relation relative to each other when the excavating tooth is arranged in operable combination with the adapter. Each stabilizing land further includes a generally vertical stabilizing wall arranged in at least partially surrounding relation relative to the flat.

Abstract: A multipiece excavating tooth assembly including an adapter, a digging or excavating tooth, and retaining pin structure for interconnecting the adapter and tooth in operable combination relative to each other. The tooth and adapter have a uniquely configured interface or conjuncture therebetween. Moreover, the conjuncture between the digging tooth and adapter is configured to advantageously orientate the retaining pin structure to avoid those problems inherent with conventional vertical and horizontal pin systems.