Home High Security and Challenge Locks (943) Brent Collier’s Sargent Challenge

(943) Brent Collier’s Sargent Challenge


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My vises are made by Panavise, a U.S. Company.  The one with the wide jaws is the model 350.  The smaller one is the model 301. Both have the 312 Base mount – www.panavise.com



  1. AHH thats where I caught this cold virus .not off of your webb site I have just been told my 3 angelic little grandaughters are now coughing and spluttering and scince they spent most of the weekend round our place they are the culprits ,I take everything back Bill regarding virus’s and your web site.

  2. Thank you Bill. Watching how you progress through the pin stacks, especially when nothing seems to be there, has helped me tremendously. It is amazing how these locks sound when you slightly amplify the noise from the lock. I just picked a lock with a hearing aid on quite high. Interesting.

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