Stanley 8 Piece FatMax Locking Key Set with unique 3 position locking system for all types of job applications. The keys lock at 90 , 135 and 180 for easy access and to prevent unwanted movement. With a button lock release for quick and easy locking/unlocking. Fitted with a bi-material handle for better grip and feel. Sizes TX9, TX10, TX15, TX20, TX25, TX27, TX30, TX40.