2in astronomical filter wrench.

When installing a 2 inch filter into an astronomy filter wheel housing it can be a bit tricky. This tool will hold the filter and help you insert and screw the filter into the wheel without taking off the cover of the filter wheel.

Also good for screwing in 2 inch astro filters into other things as well. It keeps your fingers from touching the filter surface.

Added a second wrench for the 685 Optilong filter. That was larger diameter and has thicker sides. Change to friction fit on the inside of the filter housing.