- Constructed of non-conductive tough nylon, reinforced with glass fibers for added durability, and resistance to weather, abrasion and most chemicals.
- Includes positive locking joints and stainless steel spring hinges for added strength and engraved graduations on both sides.
Black markings on yellow, with red stud center markings every 16″. Measurements are marked on both sides and both edges, graduated to 1/16. Riveted lock joints are designed for long wear and maintained accuracy. Extension slide moves under friction in a T-slot with stops at each end.