I bought this thread gauge because I need to determine thread pitch on a 6mm vise and the 6mm vise has MANY pitches available. When closed, the set is approx. 62 mm long, 10 mm wide and 7 mm thick (for rivets). Each sheet is approximately 0.5mm thick (varies a little). Weight 21 grams. The question I asked before purchasing was what step sizes are included in the kit. Nobody answered. The size is engraved (barely engraved) on each sheet. Here is a list of sizes. most likely you will need an inspection microscope or an optical comparator.
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