Superior quality USA polycrystalline diamond emulsions in the greatest concentration possible. Exacting control of both particle size and distribution for uniformity of formula across batches. The real deal. No skimping here. Originally formulated by Ken Schwartz, these polycrystalline diamond emulsions are proven to produce truly spectacular finishes. Superior results when used with our kangaroo leather strops. (10 mL per bottle.)

• 9 micron

• 6 micron

• 3 micron

• 1 micron

• 0.5 micron

• 0.25 micron

• 0.1 micron 

Instructions- These are highly concentrated formulas. No need to soak your strops! On a new, thirsty strop, 4-6 drops at the very most will provide a very thorough initial coating that will service 6-8 knives without needing to add more. Space the drops on the surface and quickly spread with finger or another implement. Allow to dry (Generally under 5 minutes). Strop down, away from the cutting edge to prevent cutting into the leather. Re-apply just 1-2 drops when you see performance begin to diminish. One 10 ml bottle should service literally hundreds of knives. Guaranteed shelf life of one year minimum and should remain fully effective for several years.

Ken Schwartz Tribute

The sharpening world was delt a devastating blow when Ken Schwartz, the Great Sensei of all things micro-abrasive passed away in September of 2021. He was a true legend in the sharpening enthusiast community. Whether it was kitchen cutlery, straight razors, or EDC folders, Ken’s contributions to our respective community’s knowledge base cannot be overstated.

Ken educated and mentored countless people all over the world in both basic and advanced sharpening theory. He was a walking encyclopedia of rare natural Japanese waterstones and was a tireless perfectionist in his work developing and perfecting the finest quality diamond and CBN micro-abrasive stropping compounds to be found anywhere.

Rest well Sensei. You are sorely missed my friend.