Description
Available in 24" x 19mm and 600mm x 19mm Class I Metric imperial is subdivided in mm, figured every 10mm in mm one side ; subdivided in inches in 16ths on the other side Metric version subdivided in mm, figured every 10mm in mm on both sides Subdivided in mm and line of chords scale, one side; subdivided in mm and circumference scale in mm, other side
