DeWalt diamond cutting discs DT402 EXTREME METAL

Extreme Diamond Edge is equipped with a diamond coating, which is attached to the surface of the disc using patented technology.
Extreme Diamond Edge is made of strong steel, which reduces the risk of breakage.
Unlike bonded abrasives, Extreme Diamond Edge does not expire if the storage conditions are correct.
Because its diamond cutting edge does not wear out, Extreme Diamond Edge retains its original wheel diameter until the last cut, and the amount of airborne particles is significantly reduced.
Extreme Diamond Edge cuts various metals, including steel, stainless steel, cast iron, reinforcing iron, sheet metal, aluminum and non-ferrous metals

These cutting discs are equipped with diamond technology, which ensures extreme durability and maximum work efficiency. 

The number of cuts is 1000+, which is 30 times longer than thin bonded cutting discs.