Mặt nạ chà nhám rãnh – máy chà nhám 3 inch × 4 inch

The 3x4 size fits my sander perfectly and gives me way better control on those awkward recessed spots. Honestly, I've been putting off this detailed sanding job for weeks, and these made it almost enjoyable.

Finally, a set of groove interfaces that don't slip mid-pass on my detail sander—the 3x4 size is perfect for getting into those tight recessed spots without the pad bunching up. They hold their shape well and make control on curved edges noticeably easier.

The 3x4 sizing is perfect for getting into tight recessed spots where a regular pad just won't fit. I've used them on a few detailed trim pieces and they hold up well without tearing, even on the sharper grooves.