Final Cut Pro X: Cut clips with the Blade tool
Once you’ve added clips to the Timeline, you can easily cut them to adjust their durations or to remove unwanted sections.
The most basic edit is a straight cut. The term comes from the film editing process of cutting a filmstrip with a razor and attaching a new “clip” with glue.
Each time you cut a clip in your project, it is split into two clips. You can cut one clip at a time or multiple clips at a time.
Cut a clip in the Timeline
Choose the Blade tool from the Tools pop-up menu in the toolbar (or press B).
The pointer changes to the Blade tool icon .Tip: To switch to the Blade tool temporarily, hold down the B key. When you release the B key, the tool reverts to the previously active tool.
Move the skimmer to the frame in the clip where you want to cut, and click.Tip: You can also cut clips while playing back your project. To cut clips on the fly, press Command-B at any time while your project plays back.
An edit point appears as a dotted line where you clicked, and the clip is divided into two clips. The dotted line indicates a through edit, in which the media content on either side of the edit point is continuous.
Cut all clips at once
In the Timeline, move the skimmer to the frame where you want to cut.
Choose Trim > Blade All (or press Command-Shift-B).
All clips at the skimmer position are cut.