Summary

This is a prop chop which aids in the cutting down of your prop to suit your needs.
The cutter has a thread to suit a Dremel.

I was in need of 3 inch props for my 130 quad and couldn't wait for my 4-6 week Bangood order so i decided to cut down some 4 inch King Kong props (shown in photo), to the 3 inches i required.

You will first need to cut the prop by hand with a pair of scissors close to the desired finish size and then finish with this too.

I would personally use a larger endmill than the one i used as it does tend to vibrate a little.

I would also use a locknut on the top prop nut spanner to get the correct lock down on the prop when machining.