Trim-Kut® are abrasive discs designed for light grinding and blending applications on a variety of materials. The abrasive grains are fused directly onto a wearable polymer backing, resulting in a disc that requires no back-up pad. The polymer backing trims during use to expose new grains to the work surface. 3 in discs are designed for use on right angle air die grinders and 4-1/2 in discs are for use on right angle grinders.