A new Reichel & Drews cutting cylinder will increase the life of shingle knives and improve your finished product. Older, worn cutting cylinders result in shingle knives that are seated unevenly (reduced knife life) and at incorrect angles (finished shingle dimensional problems), requiring additional maintenance and costs. With a new Reichel & Drews cutting cylinder you get increased productivity, less time changing cutting cylinders in the shingle cutter and, best of all, reduced costs!