About this product
Proto J3700M Features
- Satin finish provides corrosion resistance and a slip resistant grip
- 12 point flare nut box end allows for fine indexing, helping to improve speed and access
- Fits 4, 6 and 12 point fasteners
- Flare nut box ends incorporates the TorquePlus™ system
- Proto® TorquePlus™ wrenches are ideal for use on stubborn or damaged fasteners, and also on fasteners made from soft materials
- The TorquePlus™ design is a high performance drive configuration which allows for quick and easy wrench engagement to the fastener flats, not the corners
- The TorquePlus™ configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the flare nut box end, minimizing slippage
- The TorquePlus™ internal design minimizes fastener rounding, helps to extend fastener life, and allows the user to more easily turn worn, rounded, or rusted fasteners
Description supplied by Toolup through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.






