Glow plug wrenches have been around longer than I have, and they all do a great job. However, when installing a glow plug deep inside a helicopter my technique is to push the stem of the glow plug onto a small piece of fuel tubing. I use this to feed the glow plug to the engine, and then turn to get the glow plug started. But now with the Mavrikk glow plug wrench from HeliProz I no longer need to use the fuel tubing. This is a very nice glow plug wrench with a knurled handle for non slip use, which also takes down for easy storage with the removal of one screw, and it’s also anodized a beautiful blue. However, one of the best parts is that it includes a foam insert to hold the glow plug in those awkward and hard to reach spots. Once you try it you’ll wonder how you ever got along without it.