Starrett 1620 Tool and Instrument Oil

Thete is really nothing not to like it just works on fine measurement tools keeps the clean and rust free.

This is the perfect oil for lubricating precision instruments. Great for micrometers etc. I have also used it to wipe down tools like gage blocks as a rust preventative. Great oil to have in the shop.

Great oil keeps the rust off them expensive measuring tools, when i ordered it was out of stock with amazon but when it was available amazon (pre order) they sent it at such at good price so can't fault A+

This is a great oil, but the seal between the bottle and the spout is terrible! Easily fixed with a few wraps of PTFE tape, but definitely drippy and messy before I took the time to do that...

This is my go-to oil for precision mechanisms. As I understand, it is used by Starrett to coat its precision tools and instruments in the factory. Even in decades-old unused Starrett tools with this original oil coating I have never seen either rust or gummed-up residue. And everything lubricated with this oil in my shop stays lubricated for a good long time. It does creep away slowly, but primarily through use and through absorption into the metal. Volatility seems minimal.I use this oil in all situations that require a film of oil on the inside of a mechanism, such as micrometer threads. For other purposes, I do use two other standard lubricants: Starrett M1 spray for protecting raw steel surfaces against rust and WD-40 to drive out moisture.But for creating a long-lasting film, this oil is the best I have used. I always keep an unopened bottle in reserve so I never run out.