That one RC tool…

[Frog Jumper]

Here is mine.

I’ve had this tiny crescent wrench in my RC kit for 35+ years now.  I used it a lot as a kid and now its in my current tool box fulfilling its destiny.

 

 

[Pylon80]

Love this.

Mine would be this one:

My dad bought it when we built our first RC plane in '91 since the engine and landing gear were held with M3 hardware. Still using it today, 33 years, 3 continents and 4 countries later...

[markbt73]

No photo (my toolbox is still in storage), but mine is a pair of small blunt-nosed pliers that are exactly the right tool for a lot of jobs. I use them to hold turnbuckles while I screw the ends on, pop ball joints into place, even install E clips. Had them since before I got my first Grasshopper. If I ever lost them, I'd almost have to quit the hobby. Almost.

[Aerobert]

This one is mine:

It's from a Proxxon socket tool box I own for more than 20 years now and which I use for many purposes. But it's always in my RC work space. The PH2 socket fits the Tamiya standard screw that perfect, I don't think a JIS screw driver could do better. It has build a lot of kits with me.

[Badcrumble]

My cheapie ratchet that takes my Tamiya and MIP bits

[BuggyDad]

Not that often used and not rc specific but I'm a huge fan of these and have sets in both my RC and my bike toolboxes. Like small flat faced pliers but always parallel. More sympathetic than pliers in most applications. Nice for assembling turnbuckles etc and can be extended across a whole suspension arm, for example, to pop the ball joint on. 

https://www.knipex.com/products/pipe-wrenches-and-water-pump-pliers/pliers-wrenches-pliers-and-a-wrench-in-a-single-tool/pliers-wrenches-pliers-and-wrench-single-tool/8603125

Expensive but can be found for a fraction of the price if you shop around. 

[Saito2]

 

In the middle of that disassembled Vanquish is a small, cheap yellowed handled screw driver. It was part of a set my folks begrudgingly got as a stocking stuffer one Christmas back in the 80's. I'm guessing they got tired of me asking to borrow dad's tools and figured this RC nonsense wasn't going away anytime soon, unfortunately for them. Its probably phillips but for some reason fits Tamiya screws perfectly. I still use it because it fits down inside recessed holes to remove screws quite well. That Vanquish was assembled with that driver back in the early '90's and it was restored with it a few years back.

[chris.alex]

3 hours ago, BuggyDad said:

Not that often used and not rc specific but I'm a huge fan of these and have sets in both my RC and my bike toolboxes. Like small flat faced pliers but always parallel. More sympathetic than pliers in most applications. Nice for assembling turnbuckles etc and can be extended across a whole suspension arm, for example, to pop the ball joint on. 

https://www.knipex.com/products/pipe-wrenches-and-water-pump-pliers/pliers-wrenches-pliers-and-a-wrench-in-a-single-tool/pliers-wrenches-pliers-and-wrench-single-tool/8603125

Expensive but can be found for a fraction of the price if you shop around. 

I own its twin sister, the mini water pump pliers. A very useful helper around the house.

But the one tool for me is this Opinel knife, which I received as a gift 30 years ago from a farmer in the southern French Alps.