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Tekno RC Hardened Steel Turnbuckle Wrench (5.5mm & 7mm)

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This is an optional Tekno RC Hardened Steel Turnbuckle Wrench, with a 5.5mm and 7mm end. This dual ended tool is perfect for any application requiring a 5.5mm (M3 nut) or 7mm (M4 nut) wrench. It is compact and extremely durable so it fits in the tightest spaces and can be used to really crank on those nuts! There simply is no better wrench on the market for these applications.


  • Dual ended design for many applications
  • Hardened steel CNC production
  • Black coated to help prevent rust
  • Laser etched size indications (5.5mm, 7mm)
  • Comfortable and easy to use

This product was added to our catalog on December 19, 2014

Verified Owner
Thursday, Nov 15 2018 (8 months ago)
Tekno RC Hardened Steel Turnbuckle Wrench (5.5mm & 7mm)
These 2 little tekno wrenches are awesome. They make building turnbuckles super easy, as well as adjusting them once they are installed on the car. I also have the shock multi tool and the wheel wrench and all of the Tekno tools are great! They have helped me a ton while building and working on all 3 of my Tekno kits over the last few weeks.
Verified Owner
Wednesday, Jan 24 2018 (about a year ago)
Tekno RC Hardened Steel Turnbuckle Wrench (5.5mm & 7mm)
Great little wrenches. Simple tool that is built strong and gets the job done perfect.