There's nothing as frustrating as losing the key to your padlock. If you need to get the lock off, you can do so with the help of some household items. Always keep a spare set of keys in a safe place or with a friend or neighbor to avoid a situation in which you have to to get a padlock off without the key.
Pick the lock if you have a lock-picking set or a pen and a small Allen key. Hold the lock in your left hand. Start with a round hook pick tool (torque wrench), or the metal pocket clip from a push pen.
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Remove the pocket clip from the pen. Insert the round hook end of the pocket clip or lock picking tool (torque wrench) into the wide side of the slit where you would insert the key. Only insert the hook part. Rotate the clip or tool in an clockwise direction until it will no longer move. Hold it in place with the thumb of your left hand.
Make a bend in the bottom half of the hair clip (about 1 inch from the bottom) or use a small Allen key. Insert the key or clip up to the bend. Rotate the clip or key in a clockwise direction until the lock clicks open.