The Worm Gear Hose Clamp 304 Stainless Steel by Oetiker is a high-quality stainless steel hose clamp with a worm gear tightening mechanism. It has a band width of 7/16", a clamping range of 5/8" to 1-1/4", and is constructed from 304 stainless steel for corrosion resistance. The worm gear allows for secure tightening by hand or with a screwdriver. This hose clamp meets DIN 3017 specifications and is recommended for automotive and industrial applications requiring a durable and easy to install hose clamp. The clamp is made in Switzerland and sold individually.