Precision formed triangular high performance sanding disc for steel and stainless steel (INOX) with maximum grinding properties and excellent service life. These are uniform discs in shape and size, and their cutting edge penetrates with the appropriate angle into the room. Cutting can only be done with an angle of attack of 45°. The fibreglass reinforced plastic tray ensures sturdy and safe use. They do not deform even in extreme weather conditions and are considerably more robust for demanding uses.