FITMENT: Adjustable gland nut socket are engineered to fit and work with hydraulic cylinders in construction and farm equipment scenarios and vehicles having gland nuts. FEATURES: 1)High-quality materials-- Made of high quanlity steel and black finish ,sturdy and durable, impact-resistant, corrosion-resistant. 2)Adjustable Gland Nut Wrench-- Fits gland nut from 2 to 6 inch diameter, and can be reverse to fit 1/4 and 5/16 inch diameter pinhole(Replace with OTC 1266). .