Pro-Grade products are designed and built with one goal in mind- to equip you with the best value available in Professional Quality Hand tools. To ensure long-lasting durability and performance, we start by using only premium quality raw materials like Chrome Vanadium Alloy, chrome Nickel and High Carbon Tool Steel. Precise manufacturing techniques and strict quality control are then added so that every product will meet or exceed A.N.S.I. If fact we"re so sure of our product"s quality, every item is backed up by an Unconditional Replacement Warranty for the life of the tool. So when you"re looking for a quality layout and measure tool, Pro-Grade offers a full line to meet your demanding needs, whether it"s for home, office or job site.