The Groz Edge and Center Finder Set is a handy tool set for anyone looking for an accurate work location. Consisting of 2 center finders with varying shank sizes, a combination edge and center finder, and an edge finder it is a very useful set for the technician working in jig boring or on milling machines etc.. Manufactured from precision ground tool steel, the tools, are case-hardened 45-48HRC for increased durability. The independent tools in this set can be used to locate edges on any surface including flats, straight edges, shoulders and grooves as well as round work such as dowels or center points of circles. These are also useful to scribe lines on studs or wallboards.