3M Hookit Flexible Abrasive Discs 34403 are P400-grade, high-performance abrasives ideal for a variety sanding applications, including primer and e-coat sanding These versatile discs are designed to be used by machine or hand, wet or dry - on a variety of substrates. They deliver high flexibility for even sanding in hard-to-reach areas and on curves. The Hookit hook‑and‑loop feature helps make changeouts simple, and allows the disc to be reused for multiple jobs and longer shop life. Available in a wide range of grades from P400 to P1500 that offer precision-perfect results and a uniform finish, 3M Hookit Flexible Abrasive Discs help you get the job done fast.