I bought a new, from Amazon Grizzly H2713 Surface Gauges and it has alot of side to side movement. With all thumb screws tightened you can move the top of the rod about 1/4 of an inch, you can see the fine adjustment and frame for the bottom snug inside the bottom cast iron base moving. Did I get a bad tool? Can you adjust the gauge to remove the side to side movement? Do all surface gauges have side to side movement? Or are Grizzly surface gauges bad in general? I've bought, has not arrived complete, Brown & Sharpe 621 surface gauge, I have never owned a surface gauge and am very new to hobbyist machining, I've spent the last several months slowly buying the tools I need so I have 0 experience so any help would be great, thanks.