For sale is a Group of (9) Mandrels for use with Cheswold Ameron Smith Fiberglass Pipe End Finishing Machines. (4) 3.33" Diameter "gold" mandrels, marked "S". (3) 3.29" Diameter "red" mandrels, marked "A". (1) 2.22" Diameter "gold" mandrel, marked "S". (1) 2.18" Diameter "red" mandrel, marked "A".