The 20 mm test tube brush is designed for thorough cleaning of the inner surfaces of test tubes, glass and plastic tubing, and hard-to-reach openings. The end fan tip gently finishes the bottom and corners, where residue often accumulates.
Thanks to the optimal 20 mm diameter, it’s a great choice for common laboratory vessels and is also useful for cleaning holes after drilling, in model making, or equipment maintenance. The robust construction ensures long service life and comfortable handling.