Goodson Tools & Supplies is proud to offer 3 different kinds of honing oils. This selection, of course, leads to the question, “What’s the difference?” So we're going to give you the short version.
The HO series of honing oil was designed by the Goodson tech staff to be a clear oil. It was formulated to provide the machinist with a more aggressive result when honing various cast iron and steel alloys. Some say it has a drier effect that allows faster stock removal while keeping the honing stones clean and free during cutting.
We went with a clear oil instead of a dark one because you can easily monitor the swarf content of the oil. Since you can see what kind of gunk you’re accumulating, you can change filters and filter paper as needed to lengthen the overall life of the oil in the honing tank.
We recommend the Goodson HO oil for Vitrified Stones only. It is not the right honing oil for Nicasil or Diamonds. RHO should be used for Nicasil and DHO for diamonds. We’ll talk about those in just a sec.
Goodson HO oil is true oil. It can be mixed with other brands of honing oils, such as the Sunnen MAN-845 and others. This oil is not designed to be mixed or used with any of the water-based honing solutions currently in the marketplace.
RHO honing oil was developed for high pressure honing such as connecting rod honing. This oil also contains additional lubricants to enhance honing smaller diameters that are on the big end of the connecting rod. Generally made from iron and steel, the rods may also have a brass or bronze bushing that also needs to be honed to size. Goodson RHO oil is what is needed as it contains additives to make this possible.
Like Goodson HO oil, RHO is compatible with most other connecting rod honing oils. Again, never mix this oil with any water-based honing solution.
The newest addition to our selection of honing oils is the DHO series. This honing oil was designed for higher pressure that occurs when honing small diameters in materials such as Bronze, Manganese Bronze and other combinations of bronze materials when using diamond abrasives such as the Goodson Black Diamond™ Hyper-Finish System and the Sunnen Diamond Sizing Tool.
Goodson incorporated an additional lubricant into the formula to allow the oil to act slicker when honing the smaller diameters in these softer bronze valve guide materials. This oil can be mixed with our RHO series of honing oil or with Sunnen MAN-845 types of honing oil. As with the other Goodson honing oils, Do Not mix with water.
If you still have a few questions, feel free to talk with one of the Goodson Techxperts™ by phone (800-533-8010) or email.
Looking for other Grinding & Honing Oils? View our selection.