Application - Adjustable gland nut socket are engineered to fit and work with hydraulic cylinders in construction and farm equipment scenarios and vehicles having gland nuts High-quality materials - Made of high quanlity steel and black finish ,sturdy and durable, impact-resistant, corrosion-resistant. 1266 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) 7463 Universal Gland Wrench - Fits gland nut from 1 to 3-3/4 inch diameter, and can be reverse to fit 1/4 and 7/32 inch diameter pinhole(Replace with OTC 7463) SATISFACTION SERVICE - If you are not satisfied with our products.You can request a refund within 30 days to support a 12 month warranty.Professional and sincere service allows you to purchase without risk! Adjustable gland nut socket are engineered to fit and work with hydraulic cylinders in construction and farm equipment scenarios and vehicles having gland nuts