When an item is deburred, a small amount of material is taken away, along with the burr. The small angled edge that is left is called a chamfer.
A chamfer is a bevelled edge of 45 degrees, cut into the material using a chamfer tool bit or deburring tool.
A chamfer can be used to smooth sharp or hazardous edges on a workpiece.
Chamfering a workpiece prevents material from breaking or tearing away from the workpiece edge.
When using a deburring tool, a chamfered edge usually occurs due to the cutting edge of the tool removing material from the edge of the hole.
If the tool is applied for too long with too much downward pressure, the result may be a hole with a greater angled edge. This is called a countersunk hole.
