What is the process of a stamping tool trial? A mould trial is a process by which a new mould is optimised in order to produce the desired products as efficiently as possible. It’s one of the most important aspects of metal stamping. During tool trial, it could test different process are qualified to get a good product, such as blanking, piercing, countersinking, embossing, forming etc. Fit Precision Mold Co., Ltd is specialized in all kinds of stamping dies manufacturing, such as single stamping die, compound stamping die, and progressive stamping die etc, as well as stamping parts production.