VEVOR Chimney Sweep Kit 20FT Length, Chimney Brush Kit with 6 Nylon Flexible Rods, Rotary Chimney Cleaning Kit Driven by Drill, Chimney Cleaning Tool Kits for Sweeping Fireplace Flue

No, no need cut the bristle short. Our chimney brush can be directly used to do your cleaning job. And below please find more details FYI : This chimney brush is designed for sweeping chimney/duct ( either bricks, clay, masonry, stone or steel material；and the chimney shapes do not matter, round, rectangular, or triangle etc.) and without soft lining （the nylon bristle have sharp edge, may scratch the soft lining. So, doule check if there is any inner soft lining in your pipe firstly.

Sorry, we do not sell additional parts.

Yes, it can bend through a 90° bend in a 6 inch stove pipe. Although it can be bent to 90 degrees, it is not recommended for long-term use in the case of 90 degrees.