淚滴形空白沖壓組（金屬板材用） — 4個鋼鐵切割器，10–33公釐，珠寶圖案

The 10mm cutter punched through my copper sheet like butter, and the edges came out surprisingly clean with no burrs. I've already used three of the four sizes for different earring designs, and they all match perfectly.

The 4-piece set gives me exactly the teardrop sizes I need for earrings, and the steel cutters slice through copper sheet cleanly without any burrs. I've already punched over fifty blanks and the edges are still razor-sharp.

I was a little worried about getting clean edges on thinner brass, but the 10mm cutter handled it effortlessly and the teardrop shape came out exactly symmetrical. The set of four sizes means I can just grab the right one for the pattern instead of hand-filing everything.