3/8″ SAE Ratcheting Open-End Wrench—Slip In, Ratchet Out, Get Done

Strip-free tube-nut changes are finally painless. The 4LifetimeLines 3/8″ SAE Ratcheting Open-End Wrench glides onto brake- and fuel-line fittings where sockets and standard spanners can’t squeeze—then clicks through each turn like a mini gear wrench. No need to reset after every pull; the patented open-end ratchet bites, rotates, and releases so you can keep knuckles clear of hard lines and heat shields.

Why technicians keep this wrench on their cart:

Engineered for tight quarters – Its low-profile head slips around 3/8″ line nuts even when obstacles leave just a few degrees of swing. 

Patented open-end ratcheting gear – Directional pawls grip flats securely so you can ratchet without removing the wrench—perfect for rusty or delicate fittings. 

Cr-Mo alloy steel & stainless body – Combines extreme tensile strength with corrosion resistance for a lifetime in brake fluid, road salt, and shop chemicals. 

Comfort in greasy hands – A molded, non-slip handle stays planted even when you’re covered in fluid, reducing hand fatigue on all-day jobs.

Lifetime warranty – Like every 4LifetimeLines tool, this wrench is guaranteed for life—if it ever fails, we’ll replace it.

Upgrade your toolbox and say goodbye to three-hand acrobatics. Click Add to Cart and tackle your next brake-line job with the ratcheting open-end wrench designed to finish faster—and cleaner.