أقراص لفة بيضاء 6 بوصة 6 ثقوب PSA (3M 13809) TRI-M-ITE 414N

Finally found a PSA disc that actually stays stuck on the backup pad even during heavy sanding. The 6-hole pattern lines up perfectly with my sander, so dust collection is noticeably better than with standard discs.

The 6-hole pattern lines up perfectly on my orbital sander, so swapping discs takes seconds without any misalignment. The PSA backing grips firmly through a full session of metal finishing, and the white abrasive cuts clean without loading up as fast as I expected.

These are the exact PSA discs I was hoping to find — the 6-hole pattern keeps the dust down way better than my old solid ones. The white 414N grain cuts smoothly on aluminum and the adhesive backing sticks firmly without any curling at the edges. Already ordered another pack.