A GOOD REPLACEMENT FOR The universal socket is a perfect replacement for 30pcs 3/8 3/4 and 10mm to 19mm. ^ EASY & Agrave; UTILIZATION The plug is easy to use. for holding and removing damaged, worn and rusted bolts and nuts.^ TIGHTEN THE NUT AND BOLTFirmly hold the nut and bolt for easy one-handed operation.^ KEEP THE STRENGTH THE SAME. Maintain an even force on all sides of the binding to avoid rounding.^ FIT FORSuitable for; any standard 3/8 socket wrench. And the load handled is much higher than other adjustable tools.