The Snap-On Tools R1618S 1/2" x 9/16" Double End 12 Point Ratcheting Box Wrench is a high-quality hand tool designed for automotive use. Made in the United States, this single item wrench features a 12 point drive type and a SAE system of measurement. The owner inscribed modification adds a personalized touch to this durable and reliable tool, making it a valuable addition to any workshop or tool collection. With no warranty offered, this Snap-On wrench is built to last and withstand tough jobs in the automotive industry.