General Purpose one piece drop forging with hardened and tempered blades. For cutting sheet metal with a scissor type action using hand leverage only. The design combines maximum cutting power and control with a comfortable grip.These Faithfull Straight Tinsnips have the following specification: Length: 300mm (12in).Cutting Length: 60mm.Capacity: Copper (Soft): 1.15mm, Cold-Rolled Steel (Mild): 0.91mm, Hard Steel HRC35: 0.70mm and Stainless Steel 304: 0.63mm.