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- With ground and graduated vials
- All sizes have a cross test vial except 4-inch
- 12-inch size has a plumb vial in addition to the cross test vial, and the 18 inch size a double plumb vial
- Plumb vials on 12- and 18-inch levels are ground
- Main vials are adjustable to positive setting and housed in a satin chrome brass tube with friction-fit closing cover to prevent breakage
- Bases are made of seasoned castings with black wrinkle finish; accurately machined and finished on the bearing surface
- Involute longitudinal groove between the bearing flats provides accurate seating on round work, such as shafting
- Involute groove has a special involute design that permits better centering and greater capacity to handle larger rounds
- Groove and bearing flats are machined in one setting for maximum accuracy
- With the cross test level, level simultaneously in both directions and prevent inaccuracies in main vial reading through canting the level sideways on round work
- The 6- through 18-inch levels have graduations that are approximately 80-90 seconds or .005 inch per foot
- ISO certified
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| Size: | 12" | | Type: | With ground single plumb vial and cross test vial |
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