1.[Compatible Models] Sander pads for DeWalt DWE64233 and N329079, compatible with DEWALT DWE6420, DWE6421, DWE6421-B2, DWE6421-B3, DWE6421-BR, DWE6421K, DWE6423, DWE6423K, DCWE210B random orbital sanders 2.[Specifications and Sizes] The 5-inch replacement orbital sander pad has 4 screw holes and 8 dust collection holes, the center distance of non-adjacent screw holes is 1.97 inches/50 mm, and the center distance of adjacent screw holes is 1.38 inches/35 mm, please confirm your machine size before purchase 3.[Product Function] The hook and loop sander pad prevents the sander from damaging the disc holder during work. The high-density hooks prevent the sandpaper from flying out during work. 8-hole design for effective dust collection to prevent damage to the sanding disc holder and function. 4. Product Material The orbital sander pad is made of engineering plastics and high-quality soft rubber, which has a longer service life. Engineering plastics are not easily damaged, and soft rubber can reduce the vibration of the orbital sander, thereby improving the effect.