Brand: Milwaukee Tool Manufacturer's Part Number: 48-22-9552 Part Type: Sockets and Drive Bits Product Line: Milwaukee Magnetic Spark Plug Sockets Summit Racing Part Number: MWT-48-22-9552 UPC: 0045242611164 Socket/Bit Style: Standard Impact Rated: No Number of Pieces Included: 1 Socket/Bit Piece Count: 1 Ratchet Included: No Extensions Included: No Swivel Extension Included: No Socket Material: Steel Socket Finish: Chrome Case Included: No Quantity: Sold individually. Socket Drive (application): 3/8 in. Deep Well Socket Type: 6-point Spark Plug Socket Size: 5/8 in. Milwaukee Magnetic Spark Plug Sockets Milwaukee magnetic spark plug sockets feature an amplified rare earth magnetic retainer that balances a secure fit with smooth removal of the spark plug from the socket. A precision knurling on the outside of the socket allows for better control when hand tightening or loosening， and both the socket and retainer withstand harsh chemicals commonly found in the garage. The sockets are stamped with size markings， making it easy to identify the size of the socket. A wrench can be used on the external hex at the base of the socket for added control.