The Davies thermoplastic threaded through diameter is an absolute must-have for anyone involved in industrial workholding.My analysis of this product showed that it was incredibly reliable and provided an impressive hold. The thermoplastic material is durable and able to withstand strong forces without showing signs of wear and tear. Additionally the threaded design provides an easy and reliable way to hold many different types of items. The only downside is that it may not be suitable for extremely heavy objects. Overall, this product is highly recommended for its reliability and durability..