Universal 230mm diamond cutting discs for use with angle grinders for use in all building materials. Suitable for use with angle grinders and handheld stone cutting saws, these diamond blades are ideal for cutting concrete with rebar, brick, limestone and similar building site materials. They are designed to provide a faster work rate and offer a speed increase of around 30% compared to alternative designs. Features & Benefits Standard universal diamond blades for versatility High speed design for 30% faster work rate Economical twin pack Suitable For the Following Brick Cement-bonded fibre board Clay brick, hollow brick Clinker Combination stones Concrete, fresh (abrasive) Concrete, old Exposed concrete Gypsum Limestone Marble Mortar, plaster Natural stones Pavement slabs (artificial stone) Porous concrete Pumice stone Roofing tiles Sandstone Screed concrete Slate stones Terrazzo Includes Quick Release Angle Grinder Flange Locking Nut. Amazing super fast tool less change over