Perfect for working on larger engines and farm equipment. These Wrenches are nickel chrome plated for long lasting protection and durability. MetricFull polished for comfort and ease of useSizes stamped on both sides for easy readingNickel chrome plated for long lasting protectionChrome vanadium alloy steel for long lasting durability7mm combination wrenchCrescent Quality tools get jobs done faster and increase overall productivity. Crescent mechanics tools are made from chrome vanadium steel alloy, specially formulated and heat-treated for high strength and superior resistance to abrasion and corrosi