Some sheet metal hand tools include standard cutting snips, aviation snips and duct clippers. Other sheet metal hand tools include folding tools, duct stretchers and cable tie tension tools.
A notcher tool is used to make connecting tabs on edges of sheet metal while a snap lock punch is used to attach the sheet metal sides together. Sheet metal crimping tools are commonly used to create interlocking ends on duct pipes. Folding tools include seamers and seamer tongs.
MidwestSnips.com and Grainger.com offer numerous types of sheet metal hand tools. Tools-Plus.com also provides sheet metal hand tools for cutting, crimping, folding and more.