1) Can the unit be reset to 0.00 mm? YES
2) Is the graduation of the measurement in 0.01 mm? YES
3) When your customer moves the slider, does it appear to be jammed? NO, the slider slides very well and smooth
4) Can you get the customer to shake the unit slightly? Is there any loose component moving inside? YES, a very slight click-click is audible
5) Any damage to the jaws? NO