Crafted for durability and precision, the Vintage Armstrong No. 1 5/16" Open End Square Wrench is an essential tool for any mechanical enthusiast or professional. The wrench features a robust design characteristic of Armstrong's commitment to quality, with a size that's versatile for a variety of fastening tasks. Although the country of origin remains unspecified, this tool's reputation for reliability is well-established. As a non-modified item, it retains its original functionality, ensuring a straightforward and efficient user experience. Whether for everyday use or as a collectible, this Armstrong wrench stands as a testament to timeless craftsmanship in tools.