A hand tool, such as a duct seamer. The hand tool may include a first handle; a second handle connected to the first handle for pivoting movement about a handle pivot point; a first jaw operably connected to the first handle and having a first inner surface; a second jaw operably connected to the second handle and having a second inner surface; a first groove and a second groove on each of the first inner surface and the second inner surface; and a first shoulder created by the first groove and a second shoulder created by the second groove on each of the first inner surface and the second inner surface, the first shoulders providing a first stop and the second shoulders providing a second stop for the work-piece. The jaws may provide the shoulders at a distance of ⅜ inch and 1 inch from a front of the jaws.