Adjustable gland nut socket are engineered to fit and work with hydraulic cylinders in construction and farm equipment scenarios and vehicles having gland nuts Large Adjustable Gland Nut Wrench Offers customized fit to the gland nuts from 2 inches to 6 inches diameter, Reversible to fit 1/4 inch as well as 5/16 inch diameter pin holes, Simple use with 3/4 inch square drive Small Adjustable Gland Nut Wrench Offers customized fit to the gland nuts from 1 inches to 3-3/4 inches diameter, Reversible to fit 1/4 inch as well as 7/32 inch diameter pin holes, Simple use with 1/2 inch drive ratchet Easy to Use -- Made an adjustment to the Gland Nut Wrench to fit the pinholes and then simply use with 1/2 inch drive ratchet/breaker bar to loose and remove gland nut, No longer need to pound on a stubborn gland nut in the risk of hurting your hands. If you are a home repair enthusiast or a professional service technician, it be a good choice to keep one Gland Nut Wrench in the toolbox when you need to replace the seals in a cylinder or rebuild cylinders. Material:metal colour:black Package Contents: 2 x 1266 Adjustable Gland Nut Wrench 2 x 7463 Adjustable Gland 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.