The Fuhr 855 2 mushrooms & 2 rollers key wind 35mm features Key Wind operation which allows the door to be locked and unlocked by 2 turns of the key. The latch is retracted by the key or the handle. to change handing, undo the screw in the side of the lock case adjacent to the latch. Remove the latch, reverse, reinsert and replace the screw.
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