Compx Security COMPX NATIONAL MAILBOX LOCK PIN TUMBLER REPLACES BOMMER KD

| Helps to cover up wood damage, re-size holes and reinforce locking systems | Reduces bore from 3-1/2? in. down to 2-1/8? in. | Allows for use on all door locks from standard residential to commercial quality | For use with Mortise Deadbolt and Rim Cylinders | Includes 2 parts|Covers up wood damage, resizes holes, and reinforces locking systems|Helps reduce bore from 3 1/2 in. to 2 1/8 in.|Compatible with Mortise Deadbolt and Rim Cylinders|Ideal for commercial and residential applications