FBH特點 Feature Built-in water hole, direct cooling of the tip to improve insert life. Adjust the scale of each grid to a diameter of 0.002mm. Replace the insert seat for forward or reverse boring. 內藏式水孔，刀尖直接冷卻，提升刀片壽命 調整刻度每格尺寸為直徑0.002mm 更換刀片座即可進行正向或反向搪孔加工。 Boring Head
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