When you rent a safe deposit box, the bank will generally issue two keys to you. If you lose one key, you will pay a replacement fee (typically around $15); if you lose both, the bank will call a locksmith to change the lock and charge you a substantial fee.((https://content.pncmc.com/live/pnc/personal/serviceCharges/ServiceChargesA.pdf))((https://www.fsbwaupaca.com/personal/services.php))((https://content.pncmc.com/live/pnc/personal/serviceCharges/ServiceChargesA.pdf))