0.9mm Metric Ball End Mill

The 0.9mm ball end mill cut through hardened steel like butter – I'm genuinely impressed by how clean the curved slots came out. The micrograin carbide holds its edge much longer than the HSS bits I used before, and the round tip doesn't leave any burrs.

I needed a tiny ball end mill for some intricate 3D contour work in aluminum, and this 0.9mm carbide tool did the job without any chatter. The two-flute design cleared chips well even at higher feed rates.

The 0.9mm tip cuts cleanly through hardened steel without any chatter, and the micrograin carbide holds an edge noticeably longer than standard HSS bits.