The first item is a good razor sharp scraper. Every good hood cleaner worth his salt has a number of different scrapers in his toolbox. When a grease duct has inches worth of solid grease built up, the quickest way to remove it is with a scraper. Many things can be used for scrapers such as putty knives, flat-head screwdrivers, straight razors, and even spoons. As long as it's sharp, it can serve a purpose.The next important item in your toolbox should be a good grease removing chemical. Some…See More