Accuracy is everything in machining, metalworking, woodworking, and fabrication. Even a small error in measurement can lead to wasted material, poor fits, and costly rework. That’s why professionals rely on precision tools like the machinist square . In this guide, we’ll explain what a machinist square is, how it works, where it’s used, and why it’s an essential part of measuring and marking instruments for workshops and industries. What Is a Machinist Square? A machinist square is a precision measuring tool used to check and mark perfect 90-degree angles. Unlike carpenter squares, machinist squares are manufactured with extremely tight tolerances, making them suitable for high-accuracy work. They are commonly used in: Machining Metal fabrication Tool and die making Engineering workshops Precision woodworking A machinist square ensures that surfaces, edges, and components are truly square before cutting, drilling, or assembly. Parts of a Machinist Squar...