 Up Cut... Down Cut...
Just to find out if I'm still confused...
When UP and Down are used, it is in reference to a Router that is in the handheld plunging position.
A Spiral Down Cut bit will push the chips downward away from the router... The top surface of the workpiece should be cleanly cut where bottom could more easily have tearout.
A Spiral Up Cut bit will push the chips upward toward the router... The bottom surface of the workpiece should be cleanly cut where the top could more easily have tearout.
Now, if the Router is mounted in a table, upside down, what was Down is now UP & vice-versa.
Down is away from the router...
Up is toward the router...
Is this all correct?
If so, a Down Cut spiral bit would be a bad choice to cut a dado or mortise?
Thank you for helping me get this straight. |