The “core” and “diameter” are defined by JIS standards. The 0.3 mm core will be exactly 0.38 mm on average and will be close to 0.4 mm thick. Each manufacturer is manufactured in accordance with this standard, so it can be shared with any mechanical pencil.
Digital catalog is available for online reading.
General Info Catalog
General Information of Tombow 2024-2025 Lineup of all products of Tombow
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Downloadable PDF version is available.
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Product information in catalogs is created at the time of catalog production. Please note that design, specification and other information may change without notification.
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