The 624M Series is a two-sided metric ruler. It is 1 1/4" wide, .032" thick, and is available in 12", 18", and 24" lengths. The front has inches in 32nds for the first inch and in 16ths for the rest on top and picas/half-picas on the bottom. The back has two metric increments going in opposite directions.
The top increments are in millimeters and the bottom is in half-millimeters. Click Here to see all the Stainless Steel Rulers