bosch 190mm multi material circular saw bladeThe Multi Material circular saw blade delivers powerful cuts in a wide variety of materials With high quality carbide teeth and precise milling, the disc is robust enough for a variety of materials. The disc base is made of hardened SK5 steel with stable dimensions (>40 HRC) that guarantees precision. The hole works with or without reducer rings to accommodate different sizes The disk's expansion slots reduce vibration, dampening noise and generating