45172 Drive Size: 3/8", Price Each (part# 45172) This item features: -Completely enclosed ratcheting mechanism. -Triple tooth contact provides smooth ratcheting action with little back movement. -Hardened pawl and teeth for durability and long life. -Diamond knurled grip provides sure handling, even when oily. -Thumbwheel ratchets provide greater access when working in confined spaces. -Chamfered ends help lead the socket over fastener heads. -SuperKrome plating results in a jewelry-like finish. -Drive Type: Male Square. -Overall Length: 1 1/2 in. -Locking Type: Ball. -Finish: Chrome. -Type: Ratchet Spinner Handle.