end of collar 46 several tool seating sockets 62 are formed in and uniformly spaced circumferentially around the outer cylindrical surface 45 for reception of an end portion of a conventional jacobs type beveled gear tool or wrench 65 shown in phantom fig1 which when seated within one of the sockets 62 enables its teeth to mesh with the teeth 61 and rotate the collar 46 around the surface 45 upon rotation of the jacobs tool about an axis normal to the axis of the holder 10 radially opening access windows 63 are provided in the adaptor 15 for passage of the jacobs tool into simultaneous engagement with one of the sockets 62 and teeth 61 the resilient rings 47 and 55 may be similar to each other and the ring 55 within its retaining groove may be similar to the ring 47 and groove 48 in all respects except that the ring 55 may seat closely to the base of its retaining groove whereas the ring 47 cannot seat against the base of its retaining groove 48 as explained below likewise both rings 47 or 55 are resilient and expandable circumferentially to enable their assembly within their respective retaining grooves and may comprise conventional c rings or multiple spiral rings for example assembly of the ring 47 prior to assembly of the collar 46 on the surface 45 is accomplished by expanding the circumference of the resilient ring 47 until it can be slid rearwardly over the forward end of surface 45 the expanded ring 47 is then slid rearwardly until it snaps resiliently into the groove 48 ring 47 is then compressed radially into groove 48 until the outer circumference of ring 47 is flush with the outer surface 45 the collar 46 is.