鎢鋼劃線針

I was skeptical a carbide tip could be this precise on glass, but it scribes a clean hairline without chipping. The hardness really lives up to the description and makes marking on ceramics effortless.

I've been using this scriber on metal for a few weeks now, and the tip holds its edge incredibly well. It glides through aluminum like butter, making a crisp line every time.

Scratched a clean line across a ceramic tile without the tip chipping even once, and it’s still razor-sharp after marking a dozen steel bolts. Feels solid in the hand, though the bare carbide is a bit slick if your fingers are sweaty.