Introducing the Oval Tapered Nozzle by POWERTEC. This add-on accessory attaches to your dust collection system or shop vacuum through a 4 ID flexible hose, and uses its oval shaped end for concentrated airflow producing optimal dust accumulation. The tapered nozzle can be positioned to capture all types of dirt, sawdust and debris… even larger wood chips. Most importantly, this attachment is designed to help improve your workflow, while producing higher visibility resulting in a cleaner workshop. Premium QualityWhether youre a professional or DIY enthusiast, working with high quality products can make a world of difference in producing optimal results. Made with top grade ABS plastic, this tapered nozzle flaunts impact and heat resistance, along with a high tensile strength for long-lasting durability. For versatility, it features a *4 ID standard flexible hose end fitting which gives you a range of functionality for many of your dust collection needs. Use it with your bandsaw, drill press, sanding machine and other woodworking machines. (*Compatible with any 4 inch ID flexible dust collection hose. )Specifications• Outer Diameter: 3-13/16• Inner Diameter: 3-11/16• Nozzle Length: 7-25/32• Oval End Measurements: 1-17/64 x 3-1/16POWERTEC is a leading manufacturer of high quality woodworking tools and accessories, machines, and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry.