Nano-Oil by StClaire NanoTechnology is the lubricant knife collectors whisper about, an American-made anti-friction concentrate whose active particles, called Nano-Bearings, measure under 0.090 microns against the 50 to 100 microns of a human hair. Those microscopic bearings keep working after the carrier oil dries, will not gum up over time, and do not attract the dust and pocket lint that turns ordinary oils into grinding paste inside a daily-carried folder.
Each Pocket Oiler carries 8cc with a stainless needle applicator for one-drop precision, and the three weights divide the work. The 5WT is the thin penetrator, creeping into an assembled pivot by capillary action without disassembly and famously freeing rusted hardware in seconds. The 10WT is the universal favorite for folding knife pivots and bearings, the drop that turns a gritty action glassy. The 85WT holds its ground under pressure on detent balls, lock faces, and springs, anywhere a thin oil migrates away. A single tube outlasts years of maintenance, which makes Nano-Oil the highest-mileage item in our knife care and sharpening supplies, and the reason so many collectors run all three weights on one knife.