Sanding Block Assortment of 6 An assortment of six of Motor Guard's most popular sanding blocks. Includes SB-1, HT-1, MB-1, WB-1, RK-1 and RL-1.. Six innovative and productive sanding blocks. With a quality block for every application from fast cutting to color sanding the Motor Guard ultimate sanding block collection. is the one-stop finishing solution. Users of these unique Sanding Blocks report reduced paint prep times, reduced material consumption and increased paint. department productivity AP-2 No -