Bosch Abrasives Sanding block 607433 - Bosch 2608901178, The Bosch EXPERT S471, model number 2608901178, is a sanding block measuring 97 x 69 x 26 mm. This product is useful for manual sanding applications, designed to provide a firm and even grip for efficient surface smoothing. It is ideal for finishing surfaces in woodworking, metalworking, and preparation tasks. Bosch 2608901178 Expert Sanding Block 97x69x26mm Lasts 5x Longer