The Facom 44.4X5 is a 5-piece professional-grade combination wrench set. This set includes 18 metric and 16 fractional wrenches, each with a ball-end for access to hard-to-reach places. The set also has a 4-position wrench (44.4X5-4), which can be used as both an open-end and a closed-end wrench, with a varying range of sizes. This set is ideal for work on machinery, vehicle components, plumbing and electrical applications, and many other projects. The Facom 44.4X5 is made of chrome vanadium steel, making it durable and long-lasting.