The Starrett 640RJZ Dial Depth Gage is the same as the 640JZ except they have reverse movement (no push button) and can easily be used with one hand. Simply set on zero and apply the contact to the work and read the measurement. 0-1/2" Range, .0005" Grad, 0-50 Dial, in Case.
This item is no longer available.
The direct replacement is 640JZ.
For additional support, please contact our customer service department at (978) 249-3551.
[Discontinued 10/2025]