Experience the efficiency of the 4-1/2" GR40 ENDURO-FLEX™ blending disc, designed by Walter Surface Technologies. This innovative disc features an integral thread of 5/8"-11, making it compatible with standard grinder back flanges for seamless integration into your toolset. Its unique Eco-Trim™ backing allows for trimming, extending the disc's life up to three times, while providing a quiet and vibration-free grinding experience. Ideal for those looking for a one-step finishing solution, this disc not only reduces costs but also ensures safe and easy operation, making it an essential addition to any workshop.