Review on Starrett PT99331 Micrometer Depth Reading by Ray Cole

Although this rod is being sold as a replacement for my old Starrett NO. Mic depth 440. Adjustment nut is bigger than mine which is why the thimble cap is not fully screwed on. It works but doesn't last, buy as many threads as the original poles will allow. I believe Starrett no longer makes this type #440. Minus one star for misleading advertising. But it's still a great product, just not for me.