Get the extra leverage you need to break loose frozen and stuck nuts and bolts. Extended 40 in. length, 50% longer than standard, gives you extra leverage and makes your job easier Comes in these sizes: 3/8 in. drive with 18 in. of extended length 1/2 in. drive with 30 in. of extended length 3/4 in. drive with 40 in. of extended length 1 in. drive with 40 in.