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we could be do good quality products for you .
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Specification :
1,Using highly-strength special steel and surface strengthening process ,making higher strength and more wear-resistance .
2,The space of chip flute is much bigger ,the discharge is more smooth .
3,through the insert install the angle ,the insert which is cutting balance design ,cutting in low vibration ,the lathe main axia load is low ,cutting efficiency is high ,drilling precision and the surface finish are much better .
4,the series of big diameter U drill can be changed in different size of toolholder ,changed in the drilling diameter ,hel the users to cost saving substantially .
5.the new type of double helix internal cooling hole ,cooling and lubricating are much better and can drilling more deeper.
