10. Ring Size or Ring Gauge

Cigar thickness is often stated as a ring gauge, because, over the centuries, cigar factories would sort their hand-rolled cigars by thickness (diameter), using a wooden plank with smooth, carefully calibrated holes into which the end of a cigar could be passed. Ring gauge is a measure of 64ths of an inch. So a 64 ring cigar has a 1-inch thickness or 1-inch diameter. A 32 ring cigar is 1/2 inch thick. Likewise, a 48 ring is 3/4 inch.

Example of a ring gauge tool, not shown actual size.