The Mac 10Pc Metric Long Knuckle Saver 1 NONKS Combination Wrench Set is a high-quality hand tool set designed for automotive use. This set includes a variety of sizes from 10mm to 19mm, with a 12-point drive type for easy and efficient tightening and loosening of nuts and bolts. Manufactured by Mac in the United States, this set is reliable and durable, making it a valuable addition to any mechanic’s tool collection.