General description A set of standard ratchets in 3 drive sizes with reversible action and quick release, manufactured from polished chrome vanadium. Technical specifications Drive sizes: 1/4""D, 3/8""D, 1/2""D Teeth: 48 teeth ratchet mechanism Compatibility and accessories Ratchet Repair Kits available for the following part numbers: 3553 (1/4""D) 3554 (3/8""D) 3555 (1/2""D)