This Capri Tools Combination Wrench Set is made for serious professionals in high torque environment We use premium Chrome Vanadium steel and a complete 10step 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 standardpattern wrenches, our wrenches give you more leverage and access to hardtoreach areas The 12point box end has our WaveDrive design that transfers torque uniformly and prevents damaging and rounding of the bolt 15degree angle offset give you knuckle clearance and also helps you navigate in tight spots A heavyduty rollup canvas pouch is included to carry these combination wrenches Metric sizes include 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 mm The Capri Tools Combination Wrench Set meets ASME B107100 standards