Heard about Boelube for years. Finally had a chance to try it on several projects. It definitely works well and better than anything else I have ever tried. Would recommend.
Got it for AR assembly and it is the cheapest way to get it.
Kano Laboratories
5.0 / 5.0
(2) 2 total reviews
(Backordered) Normally Available within 4–6 Days.
SKU:PENEPHITE-13-5-OZ
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High-performance penetrating oil with added graphite for lasting lubrication.
Kroil® Penetrant with Graphite, formerly known as Penephite®, combines the legendary penetrating power of Kroil® with the dry-film lubricating strength of graphite. This advanced formula creeps into the smallest gaps and corrosion layers to loosen frozen fasteners, bolts, and fittings—while leaving behind a protective graphite film that withstands temperatures up to 700°F (371°C).
Engineered for professional-grade maintenance, Kroil® Penetrant with Graphite excels in high-stress environments where other lubricants fail. From aviation maintenance hangars to industrial facilities, it simplifies repairs, reduces downtime, and provides long-lasting lubrication under extreme heat and pressure. Formerly Penephite®—same trusted formula, new name.


Need larger volumes? See our Kroil® Penetrant with Graphite – 55 Gallon Drum for high-volume maintenance and industrial use.
15 Gallon containers are drop shipped directly from the manufacturer.
Kroil is absolutely the best penetrating oil I’ve used.
Great product!

Heard about Boelube for years. Finally had a chance to try it on several projects. It definitely works well and better than anything else I have ever tried. Would recommend.
Got it for AR assembly and it is the cheapest way to get it.
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