Edge Finder, Construction Tool Steel, Includes Protective Sleeve, Number of Pieces 1, Single or Double End Single End, Tip Diameter 0.2 in (Cylinder), Tip Shape Cylindrical, Features , Tool Steel Body and Contacts, Centre Points and Scribed Lines, Dowels, Flats, Grooves, Ground and Lapped, Edge Finders, Round Work, Shoulders, Straight Edges, Studs, Overall Length 3 in, Shank Diameter 3/8 in