... home made attempts with cut-up saw blades. The cutting depth isn't much- maybe 2mm maximum. Any ideas? Bringing the post back to a railway related theme- imagine making roller track gauges to fit rail with a 0.7mm head width and cutting the slots. Hi Rob, You can always make them. This one is 1 mm wide ground from 1/4 inch square HSS. The final dimension is set by polishing with a diamond "stone" and a lot of checking with a micrometer. Cheers, Andy 2983_071922_480000000.jpg posted: 8 Jan 2020 08:33 from: Jim Guthrie Rob Manchester wrote: As an engineering type do you know any sources of thin parting tools for lathe work? I am talking of 0.7 to 1mm thick ones. A chap I help out near me does model boats in all scales and turning small brass fittings for him is not great with my home made attempts with cut-up saw blades. The cutting depth isn't much- maybe 2mm maximum. Any ideas? Bringing the post back to a railway related ...