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The Master Switch is a great by-pass tool For Classic Master padlocks #1,#2,#3,#4.
It does not work on the current #3 as Master lock fixed the defect, however there are millions out there that are still vulnerable. By inserting both switch's deep into the keyway of the lock you are able to open the padlock. With the assistance of some p
4.8
30 ratings
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These are great on thise special locks. Designed well and strong.
A
Anthony · May 28, 2026
Really great material and only works on some locks
J
Jose · December 3, 2025
Good, solid material. Variable success but that's my inexperience