Motor grip pliers

This is the old version, find the new version here: https://www.thingiverse.com/thing:3864686

This is a propeller changing tool I made for my quadcopters and it is designed for 22xx to 28xx size motors (27 to 35 mm in diameter).
I printed it in PLA with 5 walls and 8 top and bottom layers at 0.2 mm layer height and it seems to be holding up well even tho it flexes a bit. The grip inserts I printed in Ninjaflex but other TPUs may work. And obviously you need two of each part.
You will also need a M4 bolt and nut and two washers. The spring is from a clicky pen, I used two of them.