Tiara knife scissor
Scuba knive scissors.
The security in scuba diving is to have a way to cut fishing wires or fishnets.
A dive knife is a good first step but a knife scissor is the best way. Very efficient on fishnets.
The knife-scissors is made from 420 stainless steel. The blade length is 9cm long. It is delivered with a BC mount and knive straps.