In woodworking, accurate measuring and clear marking are the foundation of every successful project—because even the sharpest tools can't fix a layout mistake. These measuring and marking tools ensure your cuts are exactly where they need to be, from combination squares that guarantee perfect 90-degree angles to marking gauges that scribe lines you can actually follow. Whether you're laying out complex joinery or simply marking a straight cut line, these tools have been helping woodworkers get it right the first time for decades.