- Ground and graduated main vials
- Housed in a satin finished brass tube with friction-fit closing ocver to prevent breakage
- Cross test vial
- The vials are adjustable to a positive setting and are housed in a satin finished brass tube with a friction-fit closing cover to prevent breakage
- Main level vials have graduations that are approximately 80-90 seconds or .005" per foot (0.42mm per meter)
- Includes standard letter of certification
