The Valenite VEN0750 Collet Chuck Extension is a high-quality tool holding accessory designed for CNC machining and metalworking applications. Made in Germany by Valenite, this 3/4'' extension features a straight shank shape and is sold as a unit. With its reliable and durable construction, this collet chuck extension is most useful for extending the reach of center-drills, drills or endmills making it a a valuable addition to any workshop or manufacturing facility looking to enhance their work holding capabilities.