Discuss why a draftsperson might use notes on a drawing.
What will be an ideal response?
The draftsperson often resorts to the use of notes on a drawing to convey to the mechanic all the information needed to make a part. Notes such as those used for drilling, reaming, counterboring, or countersinking holes are added to ordinary dimensions.
A note may consist of a very brief statement at the end of a leader or it may be a complete sentence that gives an adequate picture of machining processes and all necessary dimensions. A note is found on a drawing near the part to which it refers.
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