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Twist drill the main plane

Aug 25, 2016

Main plane as the base of the twist drill, cutting planes, in the section and string section.

If you do not consider the supplementary motor, twist drill any point on the main cutting edge of the base surface, due to the architecture characteristic of the twist drill, each point on the main cutting edge of the bit base is changing.

Any point on the main cutting edge of the cutting plane, is that contains the point of cutting speed and plane-cutting to the surface at that point. Cutting plane perpendicular to the base, and each point on the main cutting edge of the cutting plane are not the same. Any point on the main cutting edge of column cross section is achieved by that point and to drill the center line center line of cylinder, different column profile is different from main cutting edge radius of the cylinder.