Steel Grades for Beauty Instruments: 420 vs 440 vs Surgical-Grade — What Every Brand Needs to Know

Your supplier's invoice says 'stainless steel.' That tells you almost nothing. Here is what 420-grade, 440-grade, and surgical-grade actually mean for your beauty brand.
Full description: This video breaks down every steel grade relevant to precision beauty instruments — what each grade means, where it should be used, how to verify it, and what documents to demand from your supplier before placing an order.
0:00 — Introduction: why 'stainless steel' is meaningless
0:44 — 420-grade: the professional standard
1:55 — 440-grade: when and why it matters
3:30 — Surgical-grade: what the descriptor actually means
4:20 — How to verify steel grade (mill certificates)
5:45 — 3 questions to ask your supplier right now
6:45 — Recap and next steps
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Видео Steel Grades for Beauty Instruments: 420 vs 440 vs Surgical-Grade — What Every Brand Needs to Know канала ARAN Precision Pro