DIY POWER FILE!

DIY POWER FILE! Create parts that replicate factory made part. Add a nice radius, some blended curves or slots EFFORTLESSLY! Save a ton of time filing! I show its use doing a small radius but think of the possibilities here? A 1" stroke length is generous enough to create a lot of "other" options. You need a variable speed saw or proper rheostat to lower the speed of all reciprocating saws to almost a crawl as slow speed is used for any filing so gullets have time for chip removal.
Also BE SAFE! Any mass added with friction only set screws should never be used in a high speed fashion! It might/can/could/may/will(?) detach due to insane G forces.