So... what happened to the piece you removed in the first place ? And are you sure of the exact dimensions ? Near enough isn’t good enough.
2.5mm is sometimes used in smallish picture frames up to 10 x 8” but you will have to cut a piece then grind the edges down to the exact size you want using a carbide stone and water, or grit and a glass tool.
Last edited by Wavytone; 16-10-2018 at 09:39 PM.
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