Demonstrate the use of a tubing notcher (end-mill tube notcher).

Demonstration should include

• checking the notcher to ensure safe operation
• selecting the size of the end mill for tubing
• selecting the degree to be set
• adjusting the clamp all the way back
• placing the tubing into the clamp and tightening it
• moving the clamped piece of tubing slowly toward the end mill
• returning the clamp to its starting position when the desired depth is obtained
• removing tubing and deburring
• checking the fit and recutting if necessary.

Process/Skills Questions: 

• What are ways to use a tubing notcher?
• What are safety problems that could occur when using a tubing notcher?
• What sounds would be heard if the end mill became loose?
• How would a loose end mill affect the tubing?