Damage Assessment
March 22, 2022
Taps
March 22, 2022
A countersink is a conical hole cut into material that allows the head of a fastener to sit flush
with the surface of the material. Flush head fasteners improve aerodynamics, prevent trip
hazards, and allow parts to be placed next to each other with no interference.
By the end of this course, you will be able to
• List the common reasons for countersinking a hole
• Identify the different types of countersink cutters
• Understand how countersinks are identified
• Describe the purpose of a microstop countersink tool
• Describe the proper technique for countersinking a hole
• Understand the proper way to use a countersink gauge
Course ID Number: CUT-2003