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Master lock no 81 key dimensions
Posted:
Fri Feb 20, 2015 4:13 pmby twenglish 1
I have an old master lock no 81 with no key, I can easily pick it, but would like to use it for practice making a bump key, I am going to hand file the key but I have no idea what dimensions to use between pins or how deep to make the cuts and I haven't been able to find too much info on the key dimensions online
Re: Master lock no 81 key dimensions
Posted:
Fri Feb 20, 2015 4:32 pmby jharveee
Space to first cut 0.187
Spacing between cuts 0.125
Re: Master lock no 81 key dimensions
Posted:
Fri Feb 20, 2015 4:37 pmby twenglish 1
And that is measured from the stopper on the blank?
Re: Master lock no 81 key dimensions
Posted:
Fri Feb 20, 2015 4:40 pmby jharveee
yes,
Shoulder, I sometimes call it.
Re: Master lock no 81 key dimensions
Posted:
Fri Feb 20, 2015 4:56 pmby twenglish 1
What's the depth of the deepest cut? Do you know where I can find this info for other locks?
Re: Master lock no 81 key dimensions
Posted:
Fri Feb 20, 2015 5:01 pmby jharveee
Most of this info is on the net.
Just google "masterlock key bitting"
there is a PDF- Tech Manual
Re: Master lock no 81 key dimensions
Posted:
Fri Feb 20, 2015 5:27 pmby jharveee
http://kstoerz.com/locksport/bitting/Gordon posted this the other day.
If I copied the link correctly, should get you all the info.
Re: Master lock no 81 key dimensions
Posted:
Sat Feb 21, 2015 12:53 amby twenglish 1
Very useful link, thank you