EXPERT Diamond Metal Wheel for Long Life Cutting MetalCutting metals such as steel and cast iron has traditionally been tough on angle grinder discs, and many workers are familiar with the chemical smell of bonded discs burning away while they cut. With the EXPERT Diamond Metal Wheel, this smell can be consigned to the past – as can regular trips to a shop to buy new metal discs.For tradespeople and construction workers who are fed up with burning through bonded discs and money, the Bosch EXPERT Diamond Metal Wheel Large Size Angle Grinder Cutting Disc offers a whole new way of cutting metal.