Genius Tools Extra Long Box Wrench 5/16 x 3/8 Inch Dual Size 235mm Length Durable Chrome Finish – 791012L

Genius Tools Extra Long Box Wrench 5/16 x 3/8 Inch Dual Size 235mm Length Durable Chrome Finish – 791012L Box End Wrench

This extra long box end wrench combines two common SAE sizes—5/16 inch and 3/8 inch—into one professional-grade hand tool. The 235mm (9.25 inch) length helps provide added leverage and improved access when working in tighter spaces where a standard-length wrench can feel limited.

Built from Chromium-vanadium steel alloy and finished with a durable chrome coating, it is designed for strength, corrosion resistance, and long-term daily use. Sizes are stamped directly on the wrench for quick identification and better tool organization.

Key Benefits

• Dual-size box ends: 5/16 inch and 3/8 inch in one wrench.
• Extra long 235mm length improves leverage and reach in confined areas.
• Chromium-vanadium steel alloy delivers high strength and durable performance.
• Chrome finish helps resist corrosion for long service life in shops.
• Forged and heat treated construction supports heavy use and consistent durability.
• Sizes stamped for permanent, easy identification and faster tool selection.
• Meets or exceeds ANSI standards for quality and professional workmanship.

Designed for professional technicians, this wrench is built to perform over a lifetime of heavy use. It is backed by the Genius Tools Limited Lifetime Warranty against manufacturer defects, providing dependable coverage while keeping your hand-tool setup organized, identifiable, and ready for repeatable results.