Question

tha operation of making a cone shaped enlargement of the end of hole is known as​

Answer 1

Answer:

Explanation:

Counter sinking is used to enlarge the upper part of (a cavity), especially by chamfering, to receive the cone-shaped head of a screw, bolt. The operation of making a cone-shaped enlargement of the end of a hole is known as Counter-sinking.

Answer 2

Answer:

Counter sinking is the operation of making a cone shaped enlargment of the end of the hole.

Explanation:

Counter sinking is used to enlarge the upper part of especially by chamfering, to receive the cone-shaped head of a screw, bolt. The operation of making a cone-shaped enlargement of the end of a hole is known as Counter-sinking.