25 Degree Reference Edge for use with a Stihl 2 in 1 Easy File Chain Saw Sharpening File

This is a snap in adapter I designed to provide a 25 degree reference edge when sharpen chain saw blades requiring a 25 degree angle and when using a Stihl 2 in 1 Easy File Chain Sharpening File or the import copies of the 2 in 1 Easy File.

This needs to be printed using TPU so it is flexible enough to snap over the Easy File.  

Also,  you need to print the basic part and also a mirror image of that part so you have an adapter to install on each end of the Easy File.