Check the listing for details. Phase II Boring Bar. Condition: New – Open box. Listed at 12.99 USD. The Phase II Boring Bar is a high-quality toolholding solution designed for CNC machines in the metalworking industry. Its quick change tool post feature allows for easy and efficient tool changes, improving productivity and accuracy in machining processes. With its durable construction and precise design, the Phase II Boring Bar is a reliable tool for professional manufacturers looking to enhance their workholding capabilities.