Abstract: Wood-type golf club heads have dent resistant crowns with surface areas configured so that at least about 50% of the crown surface area is associated with a crown thickness substantially equivalent to a critical thickness. A critical thickness is generally associated with a higher dent resistance than crowns that are substantially thinner or thicker. Wood-type golf club heads also have crowns with radii and spans that are substantially equivalent to critical crown radii and critical crown spans. Such wood-type golf club heads also exhibit surprisingly superior dent resistance than would be expected for a crown of such thickness.

Abstract: A multiple use hand tool comprises an elongated housing defining a handle having a longitudinal through bore in which is slideably mounted a tool holding member for holding a utility knife blade at one end and a marking crayon at the other end for selective extension from the respective end of the handle for use. The tool holding member is releasable for sliding from the housing for removal and replacement of a tool.