The Mac Tools 14-pc 3/8" Deep Metric R.B.R.T. Socket Set, No. SXDM146RBRT, is designed to be used on new and damaged fasteners. This set is made to grip and turn an 80 percent rounded bolt, with up to 61 percent more torque than existing Mac Tools precision torque sockets. Each socket has a polished finish for corrosion resistance. Sizes include 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, and 19mm.