Manufacturing And Production Technology
A taper tap has

Its end tapered for about three or four threads
None of these
Its end tapered for about eight or ten threads
Full threads for the whole of its length

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Manufacturing And Production Technology
The lip angle is the angle

None of the listed here
Between the face of the tool and a line tangent to the machined surface at the cutting point
Between the tool face and the ground end surface of flank
Made by the face of the tool and the plane parallel to the base of the cutting tool

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