Best way to clean inside thermostat housing

[NotToShabby]

Hi

I recently pulled off my thermostat housing due to bad thermostat. What's the best way to clean the inside of housing and flanges?

Thanks in advance

 

[Scott Danforth]

wire brush chucked up in a drill

 

[kenny nunez]

Also if you have access to a glass bead blast cabinet.

 

[NotToShabby]

Thanks. Used a wire brush