"Low profile ratcheting wrench with 3/8\" breaker bar and attachments reach even the most confined belt and tensioner applications","Attachments all measure 1\" and under in profile thickness at the head","3/8\" square drive on ratchet allows for use with the included breaker bar or any common ratchet for user customizable angles and access","Flex head breaker bar allows for adjustable angle at the ratchet, moving the user’s hand away from engine accessories","Includes 72 tooth ratcheting wrench, 10\" flex head 3/8\" breaker bar and 13 pieces that lock into the wrench: 13, 14, 15, 16, 17, 18 and 19mm low profile sockets, 3/8\", 1/2\" and 3/4\" square drive adapters and 13, 14 and 15mm crowfoot wrenches SERPENTINE BELT WRENCH SET MSBT15A | Matco Tools