Fastest Opening Knives - Disadvantages Of Crime Stopperscareer Search Result When enough pressure is applied to the thumb stud to open the blade, the bar slides along a track in the handle to assist you to open the knife. Many consider the speedsafe technology. Letโs get stuck into our top recommendations for the best assisted opening knives. Zt is renowned for producing premium quality knives, and the zt 350 is perhaps their most. With practice, many a knife can deploy quickly.
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