what tool grinding is more convenient for burring impeller casting in the runner ?

we have to take cost into consideration for the Secondary surface, if it is a small impeller ,we can do it. but it is uneconomicado if we do second zircon sand port l. It will be more difficult if treated with rotating grinding head , whether we can provide grinding tools for processing, and it is more convenient if we put arch sand machine (over) into the impeller flow passage grinding.
You can also buy a vibration of hand tools to test whether it can remove the burr or not.

Tag:impeller