Ten of our most popular bit & barrel keys all on one ring. Tired of guessing which key to order? Have this ring on hand and never be without the right key. This key ring also contains a solid brass blank which can be hand filed to fit most any lock. Shop around and you will find that our key set is the most economical choice out there. The table below lists each key on the ring so that you can obtain all measurements and finishes. Keys are subject to availability and may be substituted.