Collet maintenance is one of the most common causes of inadequate tool life or breakage. There are up to six links in the chain that comprise this critical tool-holding system, known as a collet.

Possible Solution: If tool breaks in the shank area, tightening the collet nut to incorrect torque can cause tool breakage. Invest in a setup-fixture and torque wrench. Possible Cause: Overheating ...