SpecificationDispenses a fine line of grease through needle nose. 3/4" adapter with 1/8" femail NPT. Use with extension or hose. 19/32" needle length. .046" tip diameter and .219" body diameter. For hand operated grease guns only.Plews/LubriMatic grease fittings are precision engineered to withstand the rugged use of most automotive, farm and industrial applications.