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Drilling Accuracy Grade
Dec 27, 2018

Drilling is another important machining process in the machining center, drilling is a basic method of hole processing, drilling is often carried out on the drilling machine and lathe, some high precision requirements can also be completed in the machining center.

The machining accuracy of drilling is low, the tolerance level can only reach IT10 generally, the surface roughness of the workpiece is generally 12.5 -- 6.3 microns, but after the completion of drilling often use reaming and reaming methods to subsequent semi-finishing and finishing.


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