hf 40939 6x26 MINI knee MILL REVIEW MINDLESS BORING After some set-up and spindle time on my new harbor freight milling machine I am glad to report of my satisfaction with the machine.While the hf40939 mill is not at the same level of build quality of Bridgeport in any way It is however a reasonably priced milling machine that I did not have to fix or rebuild before use.