Defeat Several Types of Master Locks

 The spacific type of lock i am currently toying around with is made for locking your bike. It works like a combonation lock, but instead of a dial it has 4 seperate plastic combonation wheels each numbered 0-9. If you understand how the lock is set, you know all you need to know to pick it. To set the lock you first put in the defult combonation of 0-0-0-0 and lift the "shackle" (metal bar) from the hole. Then you remove a small cap on the end where the hole is for the shackle. (note- shackle must be open for this to open)Then you remove the numbered wheels, and underneath the 0-0-0-0 (defult combo) is 4 red bars. To set your combonation you simply rotate the wheel to whatever number you want before putting it back on the lock. When the red bars are all lined up that is when the lock can be opened. My method around knowing the combo is simple and requires no knowlage or experience of picking locks.

remember one of the first things i said was that the numbers are plastic? Plastic melts very easy, and the red bar underneath it is metal, which will withstand plenty of heat.

There is a decent ammount of plastic there so i would recomend useing this method, although it is obiously not required.

Equipment

Any sort of fire starter (matches, lighter, ect...)

candle (because it is unwise to leave lighter on for long periods of time, and matches wolnt last)

cloth (to cover your mouth/nose because plastic fumes will mess you up)

a glove

Procedure

step 1 - cover mouth/nose

step 2 - light candle

step 3 - hold under the plastic with glove on the hand for when the plastic drips off

step 4 - line up the 4 red bars, and the lock is open

have fun :)