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please correct my errors..

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#1 assasukasse


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Posted 10 March 2008 - 01:35 PM

I am trying to make those bumpkey works on a master lock..
i used 2 of the 3 original keys of the master in order to make the bumps but seems i can't get them working, for sure there is an error, maybe someone can give me a good hint?

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Posted 11 March 2008 - 11:58 PM

Try filing the valleys deeper

#3 Ronny


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Posted 03 April 2011 - 10:45 PM

Basically bumping depends on the keys you made and the method you are using. Try to make the valleys more deeper and use minimal movement method while bumping. Use very less tension to the key and apply very little force to turn it. Hope this helps.