At which part of the precision straight edge is generally lapped?

Mr. Dubey • 52.30K Points
Coach

Q. At which part of the precision straight edge is generally lapped?

(A) edges only

(B) base only

(D) all over the surface

Correct : Option (A)

Explanation:

 straight edges are extremely useful for setting up machines such as planers. precision straight edges are hardened and lapped on the edges by a small radius, which makes a blunt knife edge straight to a few thousands of an mm.

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Q. At which part of the precision straight edge is generally lapped?

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