A tool 1 wherein said coupling of said first toggle link is effected at said second pivot point of said second arm and said coupling of said second toggle link is effected at said {HEAD ~ first pivot point} of said {TAIL ~ first arm} 
A tool 1 wherein said coupling of said first toggle link is effected at said second pivot point of said second arm and said coupling of said second toggle link is effected at said { HEAD ~ first pivot point } of said { TAIL ~ first arm }
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