To make it possible to easily shift a position where a processing roller butts against a tool hone, and to obtain good processing shape when the position is shifted.

A controller 55 receives an instruction such as processing speed, a spinning angle or the like to rotate and drive, based on the instruction, a processing roller spinning motor 41, a processing roller rotating motor 46, a processing roller feeding motor 52, a tool hone rotating motor 27, and a tool hone feeding motor 33. When an instruction to shift the tool hone axis from the spinning axis is received, the controller 55 changes the distance between both axes based on the processing roller width, and calculates rotating speed of the tool hone based on the distance.