Crescent mechanics tools are made from chrome vanadium steel alloy specially formulated and heat-treated for high strength and superior resistance to abrasion and corrosion. 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 durability15mmCrescent 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