Retail price as of 10.17.2026
EASYCUT NMO121 is a chlorine-free, mineral-oil-based neat cutting oil with a viscosity of 12 mm²/s (ISO 12), used undiluted for light to medium general machining and drilling. It runs on carbon and alloy steel, cast iron, aluminum and yellow metals. Balanced EP additives give a good surface finish and low tool wear, and the low viscosity drains quickly off parts and chips.
For heavier cuts, deep-hole drilling at higher loads and broaching, the next grade up is NMO241 (ISO 24); for gear cutting and heavy-duty work, NMO361 (ISO 36).
At 12 mm²/s NMO121 flows easily through through-tool channels and into a fast, light cut, and it drains off parts and chips quickly, so less oil leaves the machine with them. The trade-off is a lower flash point than thicker oils and more tendency to mist under heavy load — on enclosed machines with a mist collector that is rarely an issue. If the cut smokes, the load calls for a thicker grade.
NMO121 can usually be mixed with other mineral-based neat cutting oils of similar viscosity. To be sure, mix a small amount of both in a clear jar and leave it for 24 hours. No separation means the two can go into the machine together; layers or haze mean drain and clean first.
| Type | Neat cutting oil, mineral-oil-based, used undiluted |
| Viscosity at 40 °C | 12 mm²/s (ISO 12) |
| Flash point | above 160 °C |
| Density at 15 °C | 851 kg/m³ |
| Copper corrosion (3 h, 100 °C) | 1a — slight tarnish |
| Appearance | Brown, clear |
| Additives | EP additives; chlorine-free |
| Shelf life | 12 months unopened, stored at 5–40 °C |
The 55-gallon drum is the working size for a shop running NMO121 in its neat-oil machines, at a lower price per litre than the pail. For a drill press, a tapping station or topping up one machine, take the 5-gallon pail; for Swiss-type cells and central oil systems, the 270-gallon tote has the best price per litre. Safe handling is covered in the SDS. More neat oils: cutting oils.
