The Seco Snap-On Grade Rod Level 5001-12 snaps onto round or rectangular grade rods. This 0.1 pound level fits around leveling rods 1 to 1.25 inches in diameter and is secured to the leveling rod by two springs. Constructed of aluminum, this grade rod level features an orange-powder-painted finish and covering that will resist scratches. Also, its 40-minute vial is mounted on top for easy viewing and adjustment.
Compare to AdirPro 710-42