General description Air Hammer Rivet Tools are ideal for working with hollow, solid, and semi-hollow rivets. This set includes 12 different heavy-duty air hammer chisel tools designed to meet various needs, made from high heat-treated steel for enhanced hardness and durability. Technical specifications Material: 40RC steel Color: Gray Size: Lengths of chisels: 116mm (6 pieces), 110mm (1 piece) Package Contents: 12 x Air Rivet Hammer Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.