Commonwealth Oil

Tri-Gemini carries a complete line of Commonweath Oil EDM products. 

In the field of Electric Discharge Machining, Commonwealth Oil is the recognized leader in raising the bar for fluid performance, as well as for health & safety standards. Commonwealth Oil is the only company in the world to have achieved NSF Registered EDM Fluids to H1 and HT1 Standards. Besides meaning our fluids are safe, cleans and stable, these are also fluids you can trust.

Commonwealth Oil’s EDM Fluids are used throughout the medical, automotive and aerospace fields, including in nuclear applications. EDM-244 is the In the field of Electric Discharge Machining, Commonwealth Oil is the recognized leader in raising the bar for fluid performance, as well as for health & safety standards. Commonwealth Oil is the only company in the world to have achieved NSF Registered EDM Fluids to H1 and HT1 Standards. Besides meaning our fluids are safe, cleans and stable, these are also fluids you can trust.

Read more about EDM 244

EDM Super Supreme Fluid is truly a superior synthetic EDM Fluid. If you are looking for a fluid with an extremely long life and continuous predictability of machining times, this is the fluid for you.

Read more about EDM Super Supreme Fluids

EDM 185 is Commonwealth's lowest viscosity dielectric fluid, an excellent choice to use when  producing very fine, intricate work, at very close tolerances that is typified by narrow gap cutting. The low viscosity helps to improve flushing debris and chips in those tight areas. 

Read more about EDM 185

EuroSupreme Dielectric Fluid is your answer if you feel you need a high quality synthetic dielectric fluid, but  require a more cost effective approach.  

Read more about EDM Euro Supreme

Commonwealth Oil's EDM 101™ is an all purpose fluid, developed by Commonwealth Oil for Electrical Discharge Machines. EDM 101™ works very well when machining graphite electrodes.

Read more about EDM 101

Micro-Fine 49 is specifically formulated to work with Makino HQSF Machines. The purpose of this fluid is to hold the required particulate additive in suspension while it works. This phenomenon is the exact reverse of what is expected from most dielectric fluids.

Read more about Micro-Fine 49