Diamond cutting disc D.125mm bore.22.23mm for angle grinders segment height 2.2mm: Reduces perceived noise emissions by up to eight times (-9 dB(A)) compared to conventional discs, thanks to a special steel core. Features 12 mm high segments for a longer product lifespan. Ideal for concrete and all general building materials, it achieves a fast, efficient cut with reduced noise levels for noise-sensitive work environments.