Hmmm, Nichol$on, maybe one day... when I first got back into this hobby, I didn't even know they existed. I bought a lesser brand at my LHS, with still only four or five kits in the stash. Those five kits would've been the price of that $$ set of needle files. But I can't say that it wouldn't have been worth it!

I find shaped profile files especially useful when I want to shape a V grooved, or concave surface.

Well, after 10 years the stash has grown, and the cheapos (files) still in use on the bench, though supplemented with various other tools, sanding pads, sticks, and foam.

I find that just like with wood, planing and scraping are often preferable alternatives to filing. A very sharp blade or scraper dragged across a surface can yield a near-mirror finish, like when removing seams.

I work with kit plastic, resin, PE, brass and copper.

I absolutely love my set of Stedi carbon fibre sanding sticks... they offer the rigidity of a file, with very fine grit and various shapes. When the self adhesive paper wears down, replace it!

Here is a sampling of scraping, sanding and shaping tools (other than files) that have found specific uses on my bench:

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