A heavy duty hand riveter is supplied complete with a selection of rivets to fit the four interchangeable heads. The riveter can be operated with one hand by using the automatic gripping action. A spanner is included to interchange the heads which screw into the handle when not in use.The riveter which is 269mm in length, is supplied complete with fifteen of of the following sizes of rivets, 2.4mm, 3.2mm, 4.0mm and 4.8mm. Ideal to use when you are doing that repair to any steam model plus many other jobs too.