Deburring tools are used to remove burrs from the edges of drilled holes.
Burrs often occur at the entrance and the exit point on a workpiece, where the drill tip pierces through the material.
Entrance burrs
The entrance burr is where the drill first starts cutting. These types of burr tend to be small and not very noticeable, provided that the cutting tool is sharp and correct for the task.
Exit burrs
Exit burrs are found at the exit point of a hole, where the drill bit protrudes from the material creating a through hole.
Exit burrs do not occur on blind holes, which are those that are made through only a portion of the material.
If a blind hole is not an option, you can help to prevent burrs occurring by ensuring you have the correct cutting speed and feed speed selected (see the manufacturers operating instructions for the correct speeds).
