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Punches

Punches are a marking rod that marks metals with the aid of a hammer.
Different types of punches:
a) Centre Punch
Mark the centre point to be drilled.
Tip angle-60-90



b) Prick Punch (dot punch)
Tip angle-40


c) Drift Punch (lineup punch)
To align rivet or bolt holes.



d) Number Punch
e) automatic Punch

Other types of punches are:
1. Pin punch
To remove pin.

2. Transfer punch
To duplicate hole patterns.

3. Roll punch/ Spring
To handle spherical faced pin.

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