This clock key gauge helps you to identify what size clock key you have and saves you having to measure the square hole in the clock key. 18 sizes of squares from 1.75 to 6.00 (size 000-15) are mounted on a metal plate and labeled. Assures accuracy in ordering needed clock keys.
- Gauge for measuring clock keys
- 18 sizes from 000 (1.75mm) to 15 (6.00mm)
- Labeled for easy identification
- Mounted on metal base
- Size: 4.6" x 1.5" x .6"