The tool is made of steel, ensuring high strength, good resistance, and resistance to and rust. It offers construction and versatility. Designed to fit hydraulic cylinders found on most farm and construction equipment, this well-made solid adjustable gland nut wrench work perfectly and install all your gland nuts just like you intended! Customized to fit gland nuts from 1inch to 3-3/4inch diameter; reversible, fits 1/4inch and 7/32inch diameter pinholes (replaces #7463) Adjust the gland nut wrench to fit the pin hole, then simply use it with the 1/2-inch drive ratchet/breaker bar to loosen and remove the gland nut, no more hammering on stubborn gland nuts to avoid Injury to your device hands. Specifically designed to fit hydraulic cylinders found on most farm and construction equipment. Service tools for backhoes and other heavy equipment/agricultural machinery/hydraulic machinery. Name: Adjustable Gland Nut Wrench Color: Black Material: Steel Package Contents: 1 set x Hydraulic Cylinder Nut Wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.