The common format for a drawing divides the drawing into zones. these zones are....

The drawing title block is usually located in what part of the drawing?

On the face of the drawing there is a notes section, where is this located?

A very important element of the drawing is the revision history block. where on the drawing is this located

It is important for the machinist to note the revision number of the drawing and match that to the cnc program revision number.

Engineering drawings offer two ways to display views of a part

Section views are diplayed as dashed lines this gives the operator a view of internal features

There should be several detailed views on a drawing each view will be listed with separate letter such as detail A, B, C,

There are many numbers listed on the face of each drawing. each number is called a dimension

The leader lines signify the location of the feature based on the starting point or the actual endpoint of the feature

In the case of a hole callout you may see 2X or a 4X this means

The tolerance on a drawing tells the machinist the amount and direction by which a feature can deviate from a dimension

Each dimension on a drawing will have a varying number of digits to the right side of the decimal point this tells the machinist how critical the dimension is.