Knives Illustrated - - Gear Up -

The Speed­safe Mech­a­nism from Ker­shaw aids in quicker, eas­ier open­ing—the user ap­plies a man­ual push to the thumb stud or pulls back on the flip­per. It is im­por­tant to note that the Speed­safe mech­a­nism is not a switch­blade or au­to­matic mech­a­nism, as it still re­quires man­ual op­er­a­tion from the user and can­not be ac­tu­ated by a sim­ple push of a but­ton. The Speed­safe mech­a­nism uti­lizes a tor­sion bar to pre­vent the knife from open­ing by cre­at­ing a bias to­ward the closed po­si­tion. How­ever, once the user ap­plies pres­sure to the thumb stud or flip­per, the tor­sion bar moves along a half-moon track to as­sist the knife into the open po­si­tion. Al­though the Speed­safe mech­a­nism is con­sid­ered an as­sisted-open­ing mech­a­nism and not au­to­matic, there still may be laws and or­di­nances pre­vent­ing its carry in your area, and it is rec­om­mended that you know your lo­cal laws be­fore carry.

Bot­tom Right: Ker­shaw uses their ex­cel­lent flip­per-op­er­ated Speed­safe as­sisted open­ing mech­a­nism on the AM-3 and 4, mak­ing them light­ning fast to put into play.

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