This ferrule plug are made from Australian hard wood in the acorn style, with a cork base mounted over a brass shaft. Our ferrule plugs are built in eight sizes, to fit and protect female ferrules for 10/64, 11/64, 12/64, 13/64, 14/64, 15/64, 16/64 and 17/64. Please measure the female ferrule and check the exact size as all ferrules are not exactly the same size.
10/64 .171" (4.34mm)
11/64 .193" (4.90mm)
12/64 .211" (5.36mm)
13/64 .228" (5.79mm)
14/64 .246" (6.26mm)
15/64 .264" (6.71mm)
16/64 .282" (7.14mm)
17/64 .303" (7.71mm)
