Bahco Double opened ended spanner is used for gripping nuts on the ends of tubes. The spanner has a narrow opening wide enough to allow the wrench to it over the tube, the jaw increases the contact area with the nut. Allowing maximum contact on plumbing nuts, which are softer metals and more prone to damage from open ended wrenches.

Offset double open ended or flare-nut wrench in metric sizes
Ready to work at height
Material: High performance alloy steel
Ring end 15⁰ angle for knuckle clearance or better grip
Applications for tube tightening in auto and plumbing environments
Special deep head to protect and apply heavy torque on the screw
Chrome plated micro matt finishing provides high-quality surface

DIN 3118