330 Pcs External Tooth Star Lock 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm
✅ External tooth washers are made of high-quality stainless steel, which is sturdy, not easy to deform or break, and durable. ✅ External locking washers are better suited for biting into surfaces, which will cover more space.