16mm and 21mm 3/8" Drive Spark Plug Socket Remover Installer Tool 6 Sided

Professional tool for commercial or occasional use 3/8" drive 16mm and 21mm spark plug socket 3/8" drive so will fit any 3/8" drive ratchets / power bars / extensions 16mm and 21mm spark plug set Spark plug socket suitable for most modern vehicles Manufactured from chrome vanadium steel for strength and durability Total length of the socket 16mm - 72mm / 21mm - 65mm (external dimensions) Internal dimensions - 35mm Rubber insert to prevent damage to the spark plug 6-sided single hex sockets Magnetic grip for spark plug retention Knurled grip around the socket to prevent slipping in oily slippy conditions Thin walled socket