unserrate
/ˌʌnsɛˈreɪt, ənˈsɛrɪt/Definitions
1. verb
to remove the serrations from something, such as a saw blade
“The machinist unserrated the blade to make it suitable for cutting wood.”
2. noun
the act of removing the serrations from something
“The unserrating of the blade took several hours to complete.”