Wire locks are used to make pins and stingers, instead of tying or burning them, you use a wire lock that you crimp with a special wire lock bar. It is possible to use ordinary pliers as well but this is not recommended as you rarely get the pressure you need and you can easily damage the wire itself and create a flaw in the material. You can actually choose to crimp any material but if you are going to do it on fluorocarbon we think you should cover the wire lock with some shrink tubing, this is to protect the fluorocarbon from sharp edges. It is not wrong to have it as standard to always use shrink tubing over your wire locks!
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