Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Weller Hot Knife Blade

This blade works very well, particularly with the Harbor Freight Chicago Electric 180W, ITEM 4328-0VGA, soldering gun. This gun heats up much more rapidly than the Weller. However, if you are going to use this for more prolonged use than a few isolated rope searings, the Harbor Freight gun may be too powerful.