The Apex KD80658 Jacobs 0080657 BT 50 ER 32 Tool Holder with 150mm Projection is a precision-made tool holder that is designed to securely hold a variety of tools. The tool holder has a 150mm projection, which makes it ideal for use with tools that have a 50mm diameter or smaller. The tool holder is made from durable metal, which ensures that it will withstand years of use. The Apex KD80658 Jacobs 0080657 BT 50 ER 32 Tool Holder with 150mm Projection is a precision-made tool holder that is designed to securely hold a variety of tools. The tool holder has a 150mm projection, which makes it ideal for use with tools that have a 50mm diameter or smaller. The tool holder is made from durable metal, which ensures that it will withstand years of use.