This Capri Tools Combination Wrench 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. 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. A heavy duty, high quality roll up canvas pouch is included to carry these combination wrenches. Metric size: 10 mm. The Capri Tools Combination Wrench Set meets ASME B107.100 standards.