5-piece METRIC Offset (45&deg;) Box End 12-point Wrench Set Deep offset wrench sizes (10mm x 11, 12 x 14,, 13 x 15, 16 x 18, and 17 x 19mm). Each end is offset by 45 degrees allows extra clearance in hard to access areas. They offer a fully polished surface for easy clean up. Craftsman Forever Warranty.