The Sparrows Bump key expansion set covers the next 4 most common higher security commercial and residential key ways. Also included is 1 pad lock bump key. All Sparrows Bump keys are made with original cuts to the deepest settings to ensure a factory Quality reproduction. With proper technique a bump key will be able to open a high percentage of locks quickly and efficiently. You are better off buying this as an expansion to our other set unless you have a special need for one or more of the keys in this set. Sparrows Bump Key Set: American (A1045), Arrow (AR1), Yale (Y4) Master (M10) Sparrows Key Chain

YOU CAN ALSO ADD A BUMP HAMMER FOR $10.00