These general-purpose flush diagonal cutters from Hakko are made from 3mm-thick steel. They are very sturdy and rated for use with up to 10 AWG copper wire. We also carry the Hakko CHP-170 Cutter, which is 2.5 mm thick and rated for use with up to 16 AWG copper wire.
The diagram below shows the dimensions (in mm) of the Hakko TRR-58-G CHP 6-1/4 in. Macro Flush Cutter.
Note: This product is Hakko item number TRR-58-G