Proto Single Open End Wrench, Built Tough for Everyday Use, Great Pick for Pros and DIYers, Solid Toolbox Upgrade, Slim Wrench for Fast Work on Nuts and Bolts

Proto Single Open End Wrench for Pro Shop Use
✔️ 1 open end wrench, built for real work, pro-grade build

This Proto single open end wrench slides onto nuts from the side, which is handy on fittings and spots with little room. It's a handy pick for auto shops, hydraulic work, and home garages.

✅ Pack size: 1 open end wrench
✅ Brand: Proto
✅ Mfr part number: J3440
✅ Tough build for shop, garage, and job site use

💡 When should you use an open end wrench?
Open end wrenches are best when you can't get around the nut.

• They slide onto nuts from the side, great for lines and fittings
• Double open ends give you two sizes in one tool
• For tight bolts, a box end or flare nut wrench grips better