Facom Long-Reach Metric Offset Box Wrench with 10° Angle - 18x19mm (56L.18x19) - new for 2016. Short offset ring wrenches 10°. Recess allows to pass fingers or an obstacle.

• Ergonomic handle to apply torque while maintaining comfort of use.
• OGV® profile 12-point ring for powerful tightening while protecting the nut.
• 56L Series (Metric sizes from 6 to 32mm).
• Satin chrome finish.
• Overall length is 270mm

Facom recently discontinued production of all 56L series metric sizes......supply is limited to stock on hand. The 55A series or 57L series may be suitable alternatives. The 55/55A series has been around for 20+ years and is a deep offset wrench (70 degrees....I had to go back to the F96 catalog to confirm this). The 57L series is closer in offset (15 degrees) but considerably greater in length and may not be suitable for working in tight spaces.