4 X 27 吋 鋁氧化金屬砂帶，6 件

Used these on my bench grinder for smoothing out steel edges and they held up way longer than the cheap ones I've tried. The closed coat really does seem to cut down on heat buildup, which made a noticeable difference on longer sessions. Six belts for the price is a solid deal.

I’ve been using these belts on a few rusty steel parts and the closed coat really holds up without clogging. They cut consistently and the heat reduction makes a noticeable difference during long sessions. Exactly what my shop needed.

The aluminum oxide cuts through mild steel cleanly and the 4x27 size fits my belt sander without any wobble. Only gripe is the joints are a little bumpy on the first pass, but they smooth out after a minute of use.