Review on 📏 Precision Measuring Tool: Central Tools 6429 Straight Edge for Accurate Alignments by Ashwin Drollinger

So far I've only used this to test the straightness of a few aluminum cylinder heads. The first head I checked was deformed out of spec and the owner had installed it more than once and had sealing issues. The second set of heads came out perfectly straight and allowed me to start replacing the head gaskets with full confidence that all my time and money would not be wasted. After assembly, there were no problems with the machine. I don't really have a chance to fully test the accuracy of this tool unless I buy another one in the future, but I'm pretty sure it's made here in the States. The tool itself is reliable and should last for years.