BoxoUSA Advanced Master Tool Sets expand on the matching Starter Master Tool Sets and range from 173 to 390 pieces. Options include an SAE 6-point set (173 pieces), SAE 12-point set (186 pieces), Metric 6-point set (240 pieces), Aviation set (244 pieces) and Metric and SAE set (390 pieces). Depending on the set, the additions include 1/2" drive standard and deep sockets, impact sockets, adapters and ratcheting wrenches.