Get ready to clear some wall space for our Big Kahuna 27″ x 39″ inch/metric equivalent wall chart. It has large 3/8″ and 1/4″ numbers, visible from 10′ away and is laminated on both sides so spills and greasy smudges wipe right off. Chart covers inch/metric, fractional and decimal equivalents, plus drill sizes. Separate tables show tap drill and pipe drill sizes. It’s ideal for machining centers, offices or wherever else you need an easy-to-read, long-lasting conversion chart.