03 003 HS03 OLD STYLE TUBULAR ROUND Key for Kobalt only 12 AND 3 03 003 HS03 OLD STYLE TUBULAR ROUND Key for Kobalt only 12 AND 3 [RF0302530] - $10.99 : Lostakey.net
Kobalt Pro Steel 901-910 Replacement Tool Box Key
Kobalt CASE STACK 21.25-in Black Plastic Lockable Tool Box in the Portable Tool Boxes department at Lowes.com
Amazon.com: DGBRSM Truck Tool Box Lock with 2 Keys Compatible with Uws Dee Zee Delta Kobalt Better Built Husky Craftsman Toolbox : Automotive