Introducing the 2-1/2" Keyed Bridge Hose Clamps by POWERTECmonly used to connect hoses to dust hoods, blast gates, connectors and other fittings - these high quality hose clamps can be an essential tool for a wide-range of indoor & outdoor woodworking, automotive, and industrial applications. With it's premium stainless steel construction and 2-1/2" clamping capacity, this clamp is ideal for securing dust collection hoses, duct work, dryer vents, pipes and large cables. Hose Clamp OrientationLeft Hand (RH) SpiralEasy-To-UseThese hose clamps feature an easy-to-turn blue key made from a strong and durable polymer. The key is designed to make the securing and un-fastening of the hose much easier, by hand and without the use of any tools. This eliminates the knuckle busting associated with flat head screw drivers or tiny socket wrenches. Simply turn the key clockwise to tighten, counter clockwise to loosen. True Seal ConnectionThe clamps have an integral bridge component that steps over the tubings helical reinforcement, delivering a direct transfer of force to the connection, which helps eliminate hose detachment and pressure loss from leakage. POWERTEC is a US based manufacturer of high quality woodworking machines, wood work accessories, and a wide assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the best innovations, technologies, and product development to the industry.