... to the rail. If any one is interested, I can upload some pics of the thing at work. Needless to say, before you get to it with the file, you grip the thing in a vice at the appropriate angle! Firstly the Jig set up for switch tongues:- 1129_261533_190000002.jpg 1129_261533_190000003.jpg Notice that the little brass plate at the back not only grips the rail, but also is a guide for the heel of the file- go steady or you file your gauge away! Secondly, set up for vees 1129_261533_190000001.jpg The brass plate still grips the rail, but the bridge piece guides the file. This can be adjusted to any angle. 1129_261534_190000000.jpg Another little "point" is that I leave the rail well over length for switches- not only to give plenty to grip on but also to avoid stabbing your hand on the end of it: instead, it just bends out of the way under your fingers. Best wishes, Howard. posted: 26 Mar 2011 21:14 from: JFS... and I should have ...