The basic slide hammer unit can be removed and used independently this puller with a 5 lb. hammer, 2-way and 3-way head is 27 in length the inside 2-jaw spread minimum 1-1/4 to the maximum 3-1/2 and the outside minimum 1 to the maximum 4-1/2 the inside 3-jaw spread minimum 1-1/2 to the maximum 4-1/4 and the outside minimum 1-1/2 to the maximum 4-1/2 weight 10 lbs., 8 oz.here is an extremely versatile puller, which will accomplish many pulling jobs involving gears, bearings, outer races, grease retainers, oil seals, etc. either two or three puller jaws may be used to handle inside pulling jobs such as bearing cups and outer races, as well as regular outside pulling jobs. it's a very dependable and versatile tool to have around.