We've been using RTD liquid for years. We don't have a suds pump on either the lathe or the milling machine and so use RTD instead. It seems expensive but it goes a long way and you will be enjoying it's effects on metal cutting long after you've forgotten how much you paid for the bottle. We use it for hacksawing as well as all the more obvious applications

RTD is the world leading, hand applied, lubricant for reaming, tapping and drilling and has been the market leader for over 60 years.

The RTD range contains technically advanced extreme pressure additives which significantly reduce friction at the cutting edge, giving superb performance.

As a result RTD extends tool life and promotes superior surface finish, bringing cost saving efficiencies as well as improved quality.

RTD Liquid is suitable for all metals including hardened steels, titaniums and nimonics. It can also be added to ordinary mineral cutting oil for the most severe cutting operations, such as broaching and gear cutting on the toughest metals.