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Connects a dimension, note, or symbol to the feature it describes

Represents a cut-through part of an object to show internal features

Ensures that the center of a feature matches the center of another feature

Shows the relationship or order of assembly of the various parts

Shows all information needed to fabricate or identify a single part

Controls the overall form of a cylindrical feature

Indicates the location where a part has been sectioned

Gives all necessary information about the drawing

Denotes the scale to which the drawing is made

An enlarged view of a small portion of a drawing

Indicates the three-dimensional tolerance zone around a surface

Used in a section view to indicate where the material has been cut through

Shows the size of an object or parts of an object

Shows an object's feature in profile as if it were rotated 90 degrees

Represents the reference from which measurements are taken

Specifies permissible limits of variation for a dimension

Ensures that a surface is parallel to a datum plane or another surface

Indicates a hole that contains threads for a screw or bolt

Controls the total variation of a feature or surface from a datum when the part is rotated

A rectangular box that contains the geometric tolerances

Provides additional information not conveyed in the drawing itself

Indicates a gradual reduction in size of a feature

Controls the 90-degree angle between features or surfaces

Indicates the system of projection used in the engineering drawing

Indicates the extension of an object's feature to which a dimension refers

Encloses the drawing area and information zones

Used to identify parts in an assembly or sub-assembly

Describes the contour or outline of a feature in a specific section

Controls the waviness and deviations of a surface

A transitional edge between two faces of an object

Represents the axis of symmetry for circular features

Ensures that a feature's form is a true circle

Keeps track of changes or versions of the engineering drawing

Shows how individual parts fit together to form an assembly

A view taken from an angle not in the primary projection planes

Denotes the size of a curve on an object

The surface designed to support loads or to provide a wear-resistant contact area

Used to show an interrupted view of a long object

Indicates alternate positions of moving parts or related parts

Indicates the surface texture of an object

Indicates a textured surface created to provide a better grip

Defines the permissible limits for the difference between mating parts

Represents features that cannot be seen in the current view

Represents the type of weld needed, its size, and other information