🔧 Measure Up to Perfection! Heavy-duty cast zinc head with chip-resistant finish. Faded-free metric and imperial markings. CNC machined for unmatched accuracy. Weighs only 4.8 ounces for easy handling. Functions as a square, straightedge, and more. 12" precision CNC machined head Stainless steel blade The JohnsonLevel & Tool 400EM-S is a heavy-duty 12-inch metal combination square designed for precision and durability. Featuring a CNC machined head, stainless steel blade with permanent graduations, and a robust cast zinc head, this tool is perfect for professionals seeking accuracy in various applications. Made in the USA, it combines functionality with a lightweight design, ensuring it withstands the rigors of any job site.