Extension Springs are close-coiled helical springs that resist pulling forces. Extension strings are fully loaded or under tension, when the door is closed and relaxed, when the door is open. These springs has a safety cable that runs through the center of the spring and attaches to the track supports. Extension springs are provides with hooked ends so that they are attached to something. These springs are used to keep screen doors shut.
Extension Tip Air Blow Guns are safety extension gun. These are available with salient features like tamper proof and lightweight lever operated for safe comfortable handling & equipped with convenient hang up hook. These are made from black powder coated die castings. It features maximum flow for easy clean-up and blow off of even the heaviest shavings and chips.