14pcs 2-9mm Set: 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm 5.5mm 6mm 6.5mm 7mm 7.5mm 8mm 9mm. With a suitable negative rake angle design, the edge strength and sharpness are was taken into account. High- machining of workpieces with higher precision and more luster.
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