Facom 12pt 15 degree Head Ratcheting Box Wrench (16x18mm)(65 Series) - (click on photo to enlarge for details) - popular for general shop maintenance. Some contractors prefer this over the 64 series version as this has the recessed reversing lever, handy in tight spots. Features include......

• The compact ring head perfectly replaces the ratchet and socket and provides the same features as an extra low-profile ratchet.
• Head offset to 15° on each side....the 64 Series is NOT ANGLED.
• 5° increments
• Ideal for low clearance applications.
• Enables quick tightening and loosening in the most difficult conditions.
• Recessed reversing levers avoid any risk of accidental reversal while in use.