Review on M10×1 5 Perfect Milling Machine Accessories by Erik Haynes

When I use the supplied boring bars with the head in the end holes, the head has to rotate in the opposite direction to cut and the head unscrews from the holder. Must have a set screw to keep the head from loosening. If you're using threadlocker for safety, you need a permanent one, not a temporary one, because you never know when a temporary one might fail. And I say that because I've been in the machining and maintenance industry for over 40 years.