Can Kryptonite Bike Locks Be Cut? Unfortunately there isn't a lock out there that can't be cut. That being said, the Kryptonite Fahgettaboudit Mini's 18mm hardened steel shackle is impossible to crop by hand with bolt cutters.
Closed Shackle Padlocks
By further shielding the shackle on both sides, it is extremely difficult for someone to cut through with either a bolt cutter—not enough room to grip and exert force—or an angle grinder—not enough exposed parts.
The case hardened security chain is hardened to 63 rc at 10% depth and 50 rc in the core, making it impossible to cut with bolt cutters or any other hand tool. No other chain on the market is made of stronger materials or has a more difficult design for criminals to defeat.
Cutting: Thieves use tin snips, bolt cutters, hacksaws, and angle grinders to cut their way through locks and chains.
Links with diameters less than 10 mm can be cut relatively easily with medium sized bolt cutters if the thief can get the chain in a good position. Links with diameters of between 10 and 12 mm can sometimes be cut by medium size bolt cutters if the thief knows what they are doing and can get good leverage on the chain.
Bolt cutters between 30 and 42 inches in length can easily cut through medium-hard metals such as thick steel chains, copper cable, steel rods, and colossal bolts and padlocks. These heavy-duty tools have a longer handle and extra-strong steel jaws, allowing for greater leverage and bolt-busting force.
The bottom line is that there is no such thing as a chain which cannot be cut. High strength, industrial, hydraulic bolt croppers will cut through almost anything but this level of industrial tooling isn`t practical for thieves to use.
A closed shackle padlock is designed to have the minimum amount of shackle exposed; which means that if a criminal wants to saw it off, they will have a hard time doing so! This type of a shackle typically has a higher security rating compared to an open or semi enclosed shackle.
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.
For example, even the famous Kryptonite Fahgettaboudit, undoubtedly the world's most secure portable bicycle lock up until now, featuring an unrivalled 18mm hardened steel shackle, can be defeated in 1 minute with a portable angle grinder.
Kryptonite New York Standard U-Lock
With this U-Lock, Kryptonite provides a strong theft deterrent with 16 mm of hardened steel that we could only defeat with two different cuts from the powered angle grinder. It even withstood a car jack.
Kryptonite keys
For most of the Kryptonite locks, it's a free replacement service for the first two keys ($12 for one key if your lock is not in the 'key safe' program). Complete the form information that consists of the lock's type, model, and key number. Then proceed to the checkout to complete your order.
Luckily, with a few supplies from your local hardware store, you can break through the lock to access what you need. By either using bolt cutters, an angle grinder, or a hacksaw, you'll be able to open most steel locks.
Size and Weight
An 18-inch bolt cutter can often cut metal with a diameter up to 9/32 of an inch, while a 24-inch bolt cutter can cut thicknesses up to 5/16 of an inch, depending on the material's hardness and the quality of the tool.
Try bolt cutters.
This will not work on most master locks, as they are made of case hardened steel.
Cheap Chain Cuts Easily
A $20 bolt cutter cuts easily through chains, cables and padlocks up to 3/8 in. thick.
Bolt cutters generally come in one of three sizes: compact: designed to cut 5 mm, handle length of approx. 300mm; medium: designed to cut 10 mm, handle length of approx.
Most bike locks will be able to cut the lock off for you, and are likely to charge a small fee for doing so. If your bike lock was not expensive this may be the best way forwards. Call around your local bike shops and ask if they can help! What is this?
A pair of hand held cable cutters will snip through most cable locks in seconds. Cheap, inconspicuous and easy to carry around in a coat pocket, this is the tool that's most commonly used by bike thieves. And it's worth repeating again: they will cut through nearly all cable locks in seconds.
There are bike locks on the market that do claim to be uncuttable. However, the vast majority can still be cut through, but will take some serious effort as well as time. A lot will also need special heavy duty tool to successfully cut. But that's not actually bad news.