Retaining means for an earthworking tip member including a wire spring member bonded into a washer shaped member of resilient material. The means also include a partially cylindrical partially flat surfaced retaining bar member having grooves for receiving portions of the wire spring member within the open central portion of the washer shaped resilient member. The resilient member is received within a recessed portion of an adapter or shank upon which the earthworking tip member is retained. Upon engagement with the grooves in the bar member, the wire spring means and the resilient member tend to rotate the retaining bar to lock the bar member in place from firm retention of the tip member during use. The retention means is also selectively releasable when desired for removal thereof and release of the tip member.