Cannot hand tighten enough to hold balance in place. That alone makes it almost useless. What appears to be something made out of thick solid metal rods is actually thin, hollowed out cheap die-cast metal. Instead of countersunk T-nuts that would allow the bottom of the scale to sit flat on a flat surface, there are stamped metal brackets that lift it off the surface, making it difficult to draw precise lines. Basically it's a cheap scam like many cheap tools. I wish I could find out which of the other brands are actually doing well as the reviews obviously don't reflect the product I received.
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