HARRY MILLER CORP offers a large range of Soluble, Semi-Synthetic and Synthetic fluids.  As with other large manufacturers, they have aligned their products by these formulation families first, and secondly by a generalized machining category of heavy duty and light duty. But these terms are fairly subjective. It would be more helpful if they provided a product selector with respect to material and operation and also identify unacceptable applications.

The cutting and grinding oils are categorized by viscosity, which is interesting and fairly intuitive within the category.  The "coolants" are found by formulation family.  Under the formulation family (Soluble, Semi-Synthetic and Synthetic) the End User gets several product names and must select each one to find out more details of its recommended application and other features.  Once there, the information is sparse at best, in some cases a couple of sentences.  Apparently you are expected to take notes when flipping between the products.  The website is not nearly as helpful as it needs to be for the End User.  This company has an excellent reputation in the business, but the provision of information leaves a lot to be desired.  End Users want a one-page overview of products matched to recommended applications.  Here is a summary of what we found for the coolants, but double-check with Harry Miller Corp.

Hamikut® Soluble Oils

• Hamikut® 9036-B : For heavy duty machining of ferrous and non-ferrous metals, including zinc
• Hamikut® 9036-HP : For light-to-medium duty applications on a wide variety of materials
• Hamikut® 9120-NC : Chlorine free soluble oil for light and medium duty machining and grinding of steel, alloys, aluminum and yellow non ferrous metals like copper, brass or bronze
• Hamikut® 100 : For wide variety of machining and grinding operations on both ferrous and non-ferrous metals, for use in central systems
• Hamikut® 100-MG-2 : Possesses all the machining capabilities of Hamikut 100 but it has exceptional hard water stability that makes it effective for machining magnesium and its alloys.
• Hamikut® 1937-A :  Medium-duty soluble oil containing extreme pressure additives used for machining and grinding ferrous and non-ferrous metals including zinc

Kleerkut® Semi-Synthetics

• Kleerkut® 4900 : A high oil semi-synthetic fluid that performs a wide variety of machining and grinding applications on both ferrous and non-ferrous materials
• Kleerkut® 4900-HP : A lower oil version of 4900 designed for light-to-medium duty applications
• Kleerkut® 4900-HD : An enhanced, up weighted synthetic lubricant package, compared to Kleerkut 4900, for heavier duty applications. This product is chlorine-free.
• Kleerkut® 4900-EPL : A high oil semi-synthetic with chlorinated extreme pressure additives for machining the toughest alloys
• Kleerkut® 4960 : For wide variety of machining and grinding operations on both ferrous and non-ferrous metals and offers upgraded lubrication properties for aluminum machining operations, as well as better heavy duty lubrication on steel
• Kleerkut® 2900 : Lower oil, heavy duty semi-synthetic lubricant containing extreme pressure additives.
• Kleerkut 1900-FR : A light duty semi-synthetic coolant for machining & grinding operations on steel, cast iron, and aluminum

Hamikleer® Synthetics

• Hamikleer® 1975 : Synthetic coolant for ferrous and non-ferrous materials, for light-to-medium duty machining and grinding applications
• Hamikleer® 1975-HD : A synthetic machining lubricant for ferrous and non-ferrous metals. For medium to heavy duty machining operations including: boring, drilling, reaming, tapping, and threading
• Hamikleer® 1975-XS : A synthetic coolant with improved hard water stability versus Hamikleer® 1975.
• Hamikleer® 1975-RP : Similar to Hamikleer® 1975 but with improved rust protection for ferrous materials.
• Hamikleer® 1990 : Synthetic machining and grinding lubricant for ferrous and non-ferrous metals
• Hamikleer® 1995 : Heavy duty synthetic fluid for ferrous and non-ferrous metals, for moderate to heavy duty machining operations, such as turning, drilling, reaming, broaching, boring and tapping. Non-staining to non-ferrous metals, (e.g., copper alloys and aluminum)
• Hamikleer® X-231-LF : Synthetic lubricant well suited for roll grinding and Blanchard grinding.