Flex heads provides greater access in tight spaces. Set of full polish, fine-toothed combination ratcheting wrenches with Surface Drive Plus Technology. Combines the speed of a ratchet and the access capabilities of a wrench. Includes wrenches of size 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in and 3/4 in.