合金麻花钻采用6542高速钢材质，整体热处理，使用寿命是普通白钻的2倍以上，不锈钢专用。
提供规格：
1.0mm, 1.5mm, 2.0mm, 2.5mm, 2.8mm, 3.0mm, 3.2mm, 3.3mm, 3.5mm, 3.8mm,
4.0mm, 4.2mm, 4.5mm, 4.8mm, 5.0mm, 5.2mm, 5.3mm, 5.5mm, 5.8mm,
6.0mm, 6.2mm, 6.5mm, 6.8mm, 7.0mm, 7.5mm, 8.0mm, 8.2mm, 8.5mm,
9.0mm, 9.5mm, 10.0mm, 10.2mm, 10.5mm, 11.0mm,11.5mm, 12.0mm, 12.5mm, 13mm, 14mm.
更新时间：2025-04-24 13:54
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