1266 Adjustable Gland Nut Wrench: Fits hydraulic cylinders on most agricultural and construction equipment; provides a custom fit to gland nuts 2" to 6" in diameter; reversible to fit 1/4" and 2" diameter pinholes (similar to OTC 1266) Small Universal Gland Wrench 7463: Fits hydraulic cylinders on agricultural loaders, compact tractor loaders, skid steer loaders and more. Offers a custom fit to gland nuts 1" to 3.75" in diameter; reversible to fit 1/4" and 2" diameter holes (similar to OTC 74cm 3) Easy to use: adjust gland nut wrench to fit to pinholes and simply use with 1/2" drive ratchet (for 7463), 3/4" square drive (for 1266) and breaker bar to loosen and remove press nut -String Premium Quality: Made of high quality steel, this tool kit ensures high strength, high tolerance, and resistance to corrosion and rust, and features its durable construction and its versatility.