- Replacement dial set level for Centering Head No. 2UPX5 (sold separately).
- Adjustable bubble protractor that covers 180 degrees through two 90 degree quadrants, reading in 2.5 degree increments.
- Used with Jackson Safety Curv-O-Mark tools, including #4, #6, #7, #8, #20 and #33.
- Bubble cast in aluminum dial for added durability.
