4 ms·mm is roughly the width of a saw cut - in credibly useful as a base unit for carpentryby Taniwha 4y agomm is roughly the width of a saw cut - in credibly useful as a base unit for carpentrybombcar 4y agoCarpentry takes imperial measurements to a whole new level - calling a piece of wood that is 1.5x3.5 a “2x4”.Taniwha 4y agoOnly in the US, elsewhere it's a "4x2"