yes they are I got the metric and standard size at sears all gearwrench are 50% off for fathers day on the metric set you get 8 and 10 mm on one end and 12 and 13 in one and the other has 16/17 and 18/19
the sae has 3/8-5/16 and 7/16-1/2 and the other wrench has 9/16-5/8 and the other end3/4-11/16
so its like 4 wrenches in one... in my opinion way better than the craftsman dogbone also great fit and finish