Combination Wrench Set, 32-Piece Chrome Vanadium Steel Wrench Set 12-Point SAE &. EXCELLENT MATERIAL? : ROCHOOF combination wrenches are made of heat-treated chrome vanadium steel, which is stronger and more durable, not easy to wear. Surface mirror chrome plating, anti-rust and anti-corrosion. Meets and exceeds ANSI standards. 12-Point box end doubles the access angle and contact points than 6-point. Fasteners are easier to access, stronger grip. Prevents fastener slippage or wear. Raised panel wrench design provides more leverage and more torque for improved work efficiency. Metric wrench set: 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm. Fully meet your daily work needs. While each size is engraved on the wr. Double Ended, Chrome Plated, Chromed Steel. California Prop 65 Warning. Visit Our Store?