The Walter Surface Technologies ErgoFlex Abrasive Discs with Cyclone Technology are designed for smooth weld blending on both flat and curved surfaces. These discs help allow for comfortable working angle and cleaner, quieter grinding operations. An aggressive 36 grit or higher abrasive grain blend removes materials fast with minimal gouging risk, the company says. ErgoFlex is suitable for a wide range of grinding operations including grinding welded steel and stainless steel, heavy grinding, weld removal and beveling.