The Snap-On 3/8″ Drive 6-Point Metric 18 mm Flank Drive® Deep Socket SFSM18 is a high-quality, durable hand tool designed for automotive use. This single 18mm socket features a chrome surface finish and a 6-point drive type, making it ideal for both professional mechanics and DIY enthusiasts. With the reputable Snap-On brand and precision measurement, this deep socket is a reliable and versatile addition to any tool collection.