Check the listing for details. NICE! CRITERION 3/4" BORING HEAD w/ CAT40 SHANK - #DBL-203. Condition: Used. Listed at 239.00 USD. Enhance your machining efficiency with this high-quality Criterion 4" Boring Head with CAT40 Shank. This versatile tool is designed to meet the needs of professionals in the CNC, metalworking, and manufacturing industry. It is perfect for holding adapters and holders, allowing you to work with different tools without any hassle. Crafted from durable materials, this Boring Head can withstand harsh work environments and deliver reliable performance. Its unique design ensures a secure grip on the tool, eliminating the need for constant adjustments. Whether you're boring, drilling, or milling, this tool will help you achieve accurate and precise results. So, upgrade your workholding and toolholding game with this fantastic Boring Head and take your business to the next level!