The sparrows Pin Tweezers pinning tweezers have a specially curved tip allowing you to grip all those devilishly small lock components. They are Non magnetic and perfect for holding and placing pins, springs and other small parts. Made from a Pro Grade stainless steel they will not flex or bend. With a slim profile these tweezers can re-load driver pins from inside the cylinder. This is a must have tool for reassembling any lock and a must have tool for any locksmiths tool box .