The 1-5/16-1-1/2 in. Angle Head Open End Wrench Set includes 4 wrenches made from 4140 chromium-molybdenum steel, hardened to 50-53 HRC for durability. With 30 and 60 degree angled heads, these wrenches provide better coverage and access in confined spaces. The corrosion-resistant nickel finish ensures longevity, while the laser-engraved size markings make identification easy. Made entirely in the USA, these wrenches are designed to save time and effort by allowing you to work efficiently without dismantling equipment.