9 Mm Long Series Hex Key Allen Wrench With Extra Long Arm For Internal Hex Fasteners, Industrial Grade Alloy Steel, Made In USA, 6.58 Inch Long Arm And 1.54 Inch Short Arm, Durable Pro Quality For Tough Jobs

9mm Long Arm Hex Key for Internal Allen Fasteners, USA Made
✔️ 6.58 in long arm (167 mm), 1.54 in short arm (39 mm); 1 pc USA-made

This internal hex wrench is a heavy-duty tool designed to drive internal hex socket screws in machines, equipment, and automotive assemblies. It’s ideal for hard-to-reach screws where grip and torque matter.

✅ Size: 9 mm (0.354 in) internal hex head
✅ Arm lengths: long arm 6.58 in (167 mm), short arm 1.54 in (39 mm)
✅ Material: industrial grade alloy steel, heat treated for strength
✅ Finish: rust-resistant coating
✅ Made in USA
✅ Pack: 1 piece

💡 What is a handy hex key used for in internal socket fasteners and when should you reach for a long-arm model?

Here's a handy answer:

• For reaching recessed fasteners in tight spaces and applying more torque
• Long-arm design provides extra leverage for stubborn screws
• 9 mm size matches common internal hex sockets used on many machines
• Made in USA with tough alloy steel and rust-resistant finish for durability

✝️