Doing some line scribing this morning. Decided to try all four that I have (two now are for sale !).
Albion Metals. Just a needle point.
Dismiss this one as a serious contender. It scratches the plastic ie does not cut rather pushes up the sides of the plastic.But. It is very handy in difficult areas and as a starter to produce a small furrow line before using a cutting type ie a template line. Also the odd rivet hole and other odd jobs very handy.
Straight lines against a ruler
Trumpeter cuts the metal but very scratchy finish.
Tamiya cuts a nice groove. The groove is always the same width. Bit jerky with light pressure and tends to dig in. Best with pressure. It does not produce very fine lines.
Bare Metal cuts a nice groove. it is smoother in action than the
Tamiya. Allows you to build up the panel line slowly from a very very fine line which gives a good guide for the scriber. FIne lines are produced first the deeper you go the wider the line up to a maximum about that of the
Tamiya.
Using thin metal templates
Trumpeter !!!!!!!!!
Tamiya Ok but tends to wander on to the template. Bit scratchy around tight bends.
Bare Metal works well around all bends.
Tamiya nice to hold.
Bare Metal is pencil like and would be better to hold with flatter sides.
Also got a set of dentists probes. A couple of pointed ones (the ones they start pulling your teeth about with). Very fIne lines can be achieved but take a bit of care as they are pulling at the plastic.
Laurie