This ATS Lycoming and Continental Cylinder Base Nut Wrench is a must-have for any aviation enthusiast. Its durable construction and high-quality materials ensure that it will last for years to come. The wrench is designed to fit most Lycoming and Continental engines, making it a versatile tool for any aviation professional.With its easy-to-use design and comfortable grip, this wrench is perfect for anyone who needs a reliable and efficient tool for their aviation projects. Whether you are a professional mechanic or a hobbyist, this ATS Lycoming and Continental Cylinder Base Nut Wrench is an excellent addition to your toolkit.

I've included an addition wrench with this one.  It is a Snap-On S9467B SAE 7/16" distributor Wrench. This tool shows signs of being bent but is still usable.

These tools are used.

 

ATS part number - 2882  1/2"  - 1/2in drive

Snap-On part number S9476B  7/16"