This plugin adds four tools to the tool panel
Hatchet tool: Click to use like the Scissors tool, except that it will cut through all paths at that point, not just the top path. This makes it perfect for cutting two lines where they cross. Hold down the Option key to cut through only selected paths. After cutting, you can drag the tool over the unwanted paths to delete them.
Table Saw tool: Click and drag to create a straight line. When you release the mouse button, the Saber Saw will do a fence cut through all paths that cross the one you drew.
Saber Saw tool: Drag the tool to draw a free-form line. When you release the mouse button, the Saber Saw will do a fence cut through all paths that cross the one you drew.
Vector Vac tool: Either click on paths or drag through them to delete them.
Say you want to trim two lines where they intersect. Select the Hatchet tool.
Place the cursor where you want to cut. Note that it will change to indicate when it’s over a path or a point.
Click to cut both paths.
Now drag the cursor over the paths you want to delete.
And that’s it! One click, one drag, one tool.
Available for Adobe Illustrator CS3-CS5, CS6-CC for Mac or Windows.