The 1x4 Jende 80 grit is an aggressive, no-nonsense extra-extra coarse stone that eats away metal, and is used for serious profiling and repairs. Make no mistake about this stone, it can be pretty nasty and the sheer depth of the scratches can leave some longer “whisper” scratches that rise slightly above the bevel. But what it lacks in beauty it makes up for in aggression, and easily replaces the coarsest diamond plates and other extra coarse and coarse sharpening stones.
This stone is 1" x 4" in size mounted to an aluminum blank with a total thickness of 5-6mm and used with water only. It works best when soaked in water for a minute or two before use. Let air dry and store dry when not in use.
Abrasive Material: Silicon Carbide
Ideal place in a sharpening progression:
This stone can also be used in a mix and match progression of other synthetic and natural sharpening stones, as well with other brands such as Shapton, Sigma, Suehiro, Imanishi, Spyderco, King, etc.
This is a waterstone, and is not to be used with oil, but can be used in conjunction with oil stones (such as Norton India and other carborundum and Arkansas stones) if the blade is wiped clean before and after switching stone types.
The Jende 80 Grit sharpening stone is a mid range extra coarse grit sharpening stone that works on almost all types of knives, scissors, tools and chisels, including those made with abrasion resistant steels. While the 1x4 size is meant for use with the KME Sharpener, it is also a great size for a slip stone, field stone or a pocket stone for knife repairs and sharpening on the go, or to remove unwanted burrs.
On More Traditional Carbon Steel and Stainless Steel Edges the Jende 80 Grit works on steels between RC 52 and RC 65 on the Rockwell C Hardness scale. The stone itself is very aggressive and releases a lot of grit for extra punch. It does make very fast work of seriously reprofiling and repairing of the softer end of the spectrum of steels like X50CrMoV15, AUS6, 440B, and most steels used by many kitchen knife makers like Henckels, Wüsthof, Gunter Wilhelm, F Dick, Victorinox, etc. However, this is a stone more appropriate for softer steeled garden tools such as lawnmower blades and hedge clippers and other tools that don’t necessarily need to be as refined in sharpness as they need to be shaped well for cutting at speeds.
On the higher end of the hardness spectrum of traditional steel edges made with steels like 1095, 52100, 440C, Aogami White, Shirogami Blue, O1, W1, etc. The Jende 80 Grit might be considered a little too aggressive, but it won’t chip out the edge as much as diamond plates can.
On Carbide Forming Steel and More Abrasion Resistant Steel Edges such as VG-10, D2, M2, S35V, S90V, etc., The Jende 80 Grit excels at removing matrix steel and carbides. The abrasive release of the stone while in use add to its aggression and can cut faster than most diamond plates as a result. While maybe a bit overkill, it can be used to “save” your diamond plates from unnecessary wear, especially on the abrasion resistant steels.
Hacks and Tips:
Comparable Stones: Jende 120