Premium Chrome Vanadium steel forged with a complete 10-step state of the art heat treatment process, constructed for serious professionals in high torque environment. Flawless chrome plating, achieved by thorough polishing and careful application of chrome protective plating, ensures durability and corrosion resistance. 12-point WaveDrive box end transfers torque uniformly and prevents damaging and rounding of the bolt, 15-degree offset for knuckle clearance and working in tight spots. Constructed longer than most other standard-pattern wrenches, giving you more leverage and access to hard to reach areas. Complete 13-piece SAE set: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 in. Comes in our own spill-resistant Mechanics Tray for easy organization and storage. Tray dimensions: 15-3/4 in. (L) x 11-3/8 in. (W) x 1-1/4 in. (H), fits comfortably in most tool chests and cabinets. This Capri Tools Combination Wrench Set is made for serious professionals in high torque environment. We use the purest premium Chrome Vanadium steel and a complete 10-step state of the art heat treatment process to make these combination wrenches. The result is a set of combination wrenches that does not break under high torque pressure. Each combination wrench underwent careful polishing and protective plating process to achieve its flawless polish. Constructed longer than standard-pattern wrenches, our wrenches give you more leverage and access to hard to reach areas. The 12-point box end has our WaveDrive design that transfers torque uniformly and prevents damaging and rounding of the bolt. 15-degree angle offset give you knuckle clearance and also helps you navigate in tight spots. The Capri Tools Combination Wrench Set meets ASME B107.100 standards. Capri Tools Combination Wrench Set, 19-Piece, SAE, Mechanic’s Tray. We are here to help if you have any questions. Simply send us a message and we will respond within 24 hours, Monday to Friday.