3. Door-Jamb Saw
When you install most new floor coverings, such as tile in your bathroom, you need to cut off the bottom of your door jambs so the flooring will slide underneath. Pros typically use specially designed electric jamb saws for this task, but DIYers can save a lot of cash by using a manual undercut saw that serves the same purpose but costs less than $20. The super-sharp teeth chew quickly through the jambs.
