In producing a punched hole of 20 mm diameter the dimensions

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In producing a punched hole of 20 mm diameter the dimensions of the punch is _______ given the radial die clearance of 0.1 mm.

1. Hole is inner profile so outer blade should be exact.
2. Hole is inner profile so outer blade should not be exact.
3. A & B
4. None of the above

Correct Option: E

Hole is inner profile so outer blade should be exact.