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Stihl Gas-Powered Straight Shaft String Trimmer, 27.2cc, 16 1/2in. Cutting Width, Model# FS 56 RC-E | Northern Tool
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Amazon.com : PROYAMA 40cc Gas Powered Brush Cutter, 4-Cycle Weed Eater, 3 in 1 Dual Line Gas String Trimmer and Grass Trimmer, Weed Whacker Extreme Duty : Patio, Lawn & Garden
![Question- I bought the fs-km attachment for my Kombi system. Fits fine but they are now telling me it's not approved. Should I keep running it with the knife blade? In lieu Question- I bought the fs-km attachment for my Kombi system. Fits fine but they are now telling me it's not approved. Should I keep running it with the knife blade? In lieu](https://preview.redd.it/fdya80bmznc71.jpg?width=640&crop=smart&auto=webp&s=385015244e61b11b7e09327a4311096b2e702c38)