A bolt cutter is one of the options to consider for cutting padlock, and it can also be used for the master lock, but it requires lots of patience and effort to do that, especially with locks made from hardened steel.
Try bolt cutters.
This will not work on most master locks, as they are made of case hardened steel.
Master combination locks have a hardened steel shackle that cannot be cut with a standard hacksaw blade. The shackle is hardened steel to deter thieves from breaking it. However, occasionally you might misplace the key for one of these locks or forget the combination, preventing access to your belongings.
The longer the arms, the more leverage created and therefore, more cutting power. An 18-inch bolt cutter can cut metal up to 9/32 of an inch in diameter while a 24-inch bolt cutter can cut thicknesses up to 5/16 of an inch, depending on the material's hardness.
Abloy PL 362 Shrouded Hardened Steel Padlock
It is one of the toughest padlock to cut or drill since it is resistant to all of that along with its hardened boron steel shackle. It is also shrouded with a hardened steel body. It is one of the biggest padlocks in the world as well as one of Abloy's largest.
Yes, bolt cutters are an effective tool you can use to cut off a lock. Choose a pair of long-handled bolt cutters and place the shackle between the blades. Squeeze the grips of the bolt cutters together until they cut through the shackle. Then, simply remove the lock.
Bolt cutters' blades are flat. These are made to cut through heavy metal, like locks, cables and heavy wiring. Plus, they can also be used for cutting wood, like branches or dowels. Bolt cutters have handles up to 4 feet in length, and generally, the longer the handle, the more force that can be applied.
ABUS Granit™: one of the world's most secure padlocks with a tensile resistance of over six tonnes. Granit locks have a tensile resistance of over six tonnes, making it almost impossible for attackers to release the shackle from the lock body by force.
Tolsen industrial 14 inch bolt cutter is ideal tool for cutting rods, rivets, locks and chains.
Large bolt cutters that measure 30 to 42-inches are perfect for cutting through medium-hard metal materials like thick steel chains, copper cable, steel rods, and large bolts and padlocks.
bolt cutter can cut through 5/8-in., vinyl-coated, flexible, braided, steel cable in 60 seconds. The cable took a bit longer than solid chain because it didn't sever as cleanly.
The best way to unlock a master lock is to call a professional emergency locksmith service to do the job for you. It might be a bit expensive compared to some of the other methods, but you will save a lot of time in the process. A professional locksmith will be able to make you a spare key for the lock.
On the back of the lock, slide the reset lever into the “up” position. Insert the shackle into the lock and squeeze firmly twice to “clear” it. Pull up on the shackle to open the lock. Enter your new combination.
Bolt cutters come in an amazing array of types and sizes, each able to cut through various materials. Typically, bolt cutters are used for cutting heavy types of metals that mere shears can't touch — bolts, wire, chain links, padlocks, and more.