Extended Power Ratchet gives you the longest reach to ratchet nuts and bolt in any tight spaces, making it easy to get to stubborn fasteners without the concern of knuckle busting. Come with 7 sockets (17mm、15mm、14mm、13mm、12mm、11mm、10mm), 2 screwdrivers, 1 to 1/4" adapter, 1hand tool and 1 extender.