Sketch Ink Toolbar

You can use pen and touch with compatible touch-enabled devices to create freehand sketch strokes and convert them into sketch geometry. This toolbar is available for touch-enabled devices.

Color Changes the color or the thickness of the line.
Draw

Activates the pen or stylus for creating sketches to quickly generate concepts within the software. You can then use the shape recognition tools to trace the sketch and generate real sketch entities, from which you can create solid or surface geometry.

In this mode, you can use ink strokes to draw your ideas on a sketch plane. The strokes do not impact your model and you can suppress them. You can also go back, select these strokes, and convert them to sketch entities later with the context menu.
Eraser

Deletes full ink strokes only. You cannot delete partial strokes. Select Eraser and click any stroke to delete it.

Does not delete sketch entities created with a sketch tool. For example, if you enable the Line tool and try to use the Eraser tool, you cannot erase the line.
Select Selects and drags items when you touch the screen with pen or stylus.
Power Modify Modifies the sketch geometry when you use ink strokes as gestures to trim, extend, split, offset, and add fillets and chamfers to sketch geometry.
Auto Shape Converts ink strokes to the nearest recognizable shape. These shapes include Line, Point, 3 Point Arc, Circle, Corner Rectangle, Ellipse, and Polygon.
Auto Sketch Entities Converts ink strokes into the nearest recognizable sketch entity shape. The software analyzes your strokes and converts your pen strokes into SOLIDWORKS sketch entities automatically. You do not need to preselect the kind of entity you want to draw.
Ink with Touch Allows you to draw sketches on the screen with your finger.
Ruler Creates straight lines. When you sketch strokes close to the straight edge, they snap to the edge of the ruler. You can access this tool from the Sketch Ink flyout menu.
Protractor Creates lines at an angle. When you draw an ink stroke along the protractor edge, it constrains the ink stroke to that edge only. You can access this tool from the Sketch Ink flyout menu.
Convert to Spline Converts lines and arcs of ink strokes into splines.
Convert to Composite Approximates ink strokes as lines and arcs.
Convert to Slot Converts ink strokes into slot sketch entities when you sketch ellipses or slots. Click Convert to Ellipse on the shortcut menu to switch the shape from a slot to an ellipse.
Convert to Ellipse Converts ink strokes into ellipse sketch entities when you sketch ellipses or slots. Click Convert to Slot on the shortcut menu to switch the shape from an ellipse to a slot.
Auto Spline Allows you to interpret strokes as splines only. Turns off automatic selection of strokes as composite shapes and splines.
Update to Shape Updates ink strokes to the nearest recognizable shape.
Update to Entities Updates ink strokes to the nearest recognizable sketch entity shape.
Edit Power Modify Undoes the last Power Modify ink stroke.
Convert to Sketch Chamfer Converts lines of Power Modify ink strokes into chamfers.
Convert to Sketch Fillet Converts arcs of Power Modify ink strokes into fillets. When you add multiple fillets quickly, the software converts all the pink-colored strokes into fillets at the same time. The software considers them as consecutive fillets with the same radius and creates an automatic relation with the first fillet in the series.
Convert to Sketch Extend Extends lines and arcs of Power Modify ink strokes up to the nearest sketch entity.

Dimensions

To dimension a previously sketched line, select the line and write the dimension in the graphics area.

You can only use the Pen, Eraser, or Select tools one at a time because they are mutually exclusive modes.