PROTO Flare Nut Wrench: Alloy Steel, Satin, 10 mm_12 mm Head Size
The PROTO J3710MT is a metric, double-end, standard-head, 12-point flare nut wrench made of alloy steel with a satin finish. It features 10 mm and 12 mm head sizes and a 7-inch overall length.
SKU 3G-OTH-401474
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Product Description
The PROTO J3710MT is a metric, double-end, standard-head, 12-point flare nut wrench made of alloy steel with a satin finish. It features 10 mm and 12 mm head sizes and a 7-inch overall length.
Frequently Asked Questions
What is a PROTO J3710MT flare nut wrench used for?
The PROTO J3710MT is a metric double-end 12-point flare nut wrench designed for tightening or loosening flare nuts on hydraulic, fuel, and refrigeration lines. Its 10 mm and 12 mm head sizes and 7-inch length provide leverage while reducing the risk of rounding soft brass or aluminum nuts.
What are the specifications of the PROTO J3710MT flare nut wrench?
The PROTO J3710MT is a metric double-end standard-head 12-point flare nut wrench made of alloy steel with a satin finish. It has 10 mm and 12 mm head sizes and a 7-inch overall length. The manufacturer part number is J3710MT.
Where to buy a PROTO J3710MT flare nut wrench worldwide?
3G Electric supplies the PROTO J3710MT flare nut wrench to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this alloy steel satin-finish wrench.
How to select the right flare nut wrench size?
To select the correct flare nut wrench, measure the nut's hex size across the flats. The PROTO J3710MT covers 10 mm and 12 mm sizes. Choose a 12-point design like this one for better engagement on soft nuts. Always match the wrench size exactly to avoid rounding the nut.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO metric, double end, standard-head, 12-point flare nut wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.











