This is a Kukko K-30-20+S univeral 3 jaw external and internal jaw puller. This puller has a maximum capacity of 5 tons. The maximum spread is 7 7/8″ and maximum reach is 5 7/8″. This is a great puller for removing bearings, gears, discs, bushings, and seals in hard to reach areas. This is a high quality puller made in Germany.