Set contains 1 each (HC2010) 3/16-inch diameter by 2-inch useable by 4-inch overall;1 each (HC2040) 1/4-inch diameter by 2-inch useable by 4-inch overall;1 each (HC2051) 5/16-inch diameter by 4-inch useable by 6-inch overall;1 each (HC2081) 1/2 inch diameter by 4 inch useable by 6-inch overall; and 2 each (HC2041) 1/4 inch diameter by 4 i...