... before I understood how they worked This is my "vise helper" for FB rail. It drops into my bench vise which squeezes the plates together to grip the rail. The alignment pins are 1/8th inch piano wire. The notches have different depths to allow for the FB foot. This ugly brute lets me really lean on the file. It doesn't take a lot of strokes. You can just about see a slot cut with a piercing saw. I use it to cut nice square ends on the rails. 2983_121857_410000000.jpg posted: 7 Jan 2020 19:04 from: Martin Carew Hi Jim, Wondering what make/brand/model your CNC is for rails? I've been hand filing with varying degrees of success. I think I need to work on the amount of pressure I put on the files and also source better quality files but being British in Canada, there is a language barrier when it comes to tools.... spanner- wrench etc! Jim Guthrie wrote: Martin Carew wrote: Jim- the CNC machine sounds ...