Phoenix Extra Thin discs are the fastest and most efficient blades for cutting both mild steel and stainless steel. They have been designed specifically for special cutting applications where speed, efficiency and accuracy are all important. EXTRA THIN do not contain Fe, S or CI (Iron, Sulpher, or Chlorine) and are suitable for cutting stainless steel, construction steel, special material samples and are suitable for use in the petro-chemical and food industries. Manufactured to European safety standards.