Review on Weiler Threaded Crimped Diameter Bristle: Achieve Optimal Cleaning Performance by Sean Maples

Seems to be very well made. Very hard work. Deducted a star because the nut is a bit flimsy and if you thread it onto the mill, good luck finding a 1 and 1/16 wrench thin enough to fit. Eventually I just used a large pair of pliers and tightened them as tight as I could. My old wire cup had a nut inside instead of a cup, so putting a socket on it was very easy.