Posts Tagged ‘Edge Pro stones’

Jende Industries Stone Cutting

February 27, 2018

Jende Industries is the leading supplier of customized cut stones for the KME Sharpener, Hapstone, Edge Pro, TSProf, and the Wicked Edge.  It’s not hard to see why.



1K King Stones for the Edge Pro, Hapstone, and TSPROF Sharpeners

September 17, 2017

Jende Industries is now carrying a 1″ x 6″ King Stone 1K grit for the Edge Pro, Hapstone, and TSPROF Sharpeners! One of the beautiful things about the guided systems such as the Edge Pro, Hapstone, and TS Prof, is that they all utilize 1″ x 6″ stones, which is our specialty!

The 1K King Stone is an old warhorse stone that is prized for its overall quality at a very economical price. It acts as an aoto stone, removing more aggressive scratches left by diamond plates, and coarser scratches left by coarser stones, leaving a very good working edge. It also has some cutting power, and can be used for minor repairs and general maintenance.

The King 1K stone measures 1″ x 6″ x 1/4″ thick and comes mounted to a standard aluminum blank that will affix into any Edge Pro, Hapstone, or TS Prof sharpener. They do require a pre soak before use, and are used with water.

#jendeindustries #edgepro #KMEsharpener #TSPROF #Hapstone #King1K #Kingstone




Razor Honing with Jende Diamond Films

November 14, 2014

The new Jende Diamond Films are great for honing razors. I personally use the 1″x6″ size with PSA for all my razors, but you can use larger sizes, with or without PSA backing just as well! Here I go through the 45, 30, 15, 9, 6, 3, 1, and 0.5 micron films. For most razor applications, I recommend the Polishing Set from our website, which is the 15, 9, 6, 3, 1, 0.5 micron films (1K through 30K).

Jende Diamond Films – Using PSA and Non PSA

November 12, 2014

Our new diamond films come with the option of being PSA backed or non-PSA backed, and this video gives a quick how-to about securing your non-PSA film to a surface, and how to change the PSA backed film. This is on the 1″x6″ Edge Pro size films, but the methods will work on all sizes.

Diamond Films by Jende Industries

November 10, 2014

Abrasion resistant steels and ceramic knives are now an established part of the knife and tool world, and this requires diamonds in order sharpen them effectively. That’s why we are proud to introduce Diamond Sharpening Films by Jende Industries! We have 10 grits available, ranging from 80 microns to 0.5 microns (180 grit to 30,000 grit), and come in Wicked Edge Precision Sharpener (WEPS) size, Edge Pro size (1″x6″), 2″x6″, 3″x8″ and 3″x11″. They are also available with PSA and non-PSA backing.

2x6 jende standard set web

2″x6″ Diamond Films by Jende Industries

With a grit range that rivals that of some of the best sharpening stone series out there, our diamond films can handle profiling and repairs while bringing your edges to amazing heights of sharpness. Our films are also great for slip stone applications – they can be wrapped around dowels for sharpening serrated edges or the inside curvatures of turning tools, or used to polish the blade of old razors.

We’ve put together a few diamond film sets to choose from in order to get you started:

The Polishing Set includes one piece each of 15, 9, 6, 3, 1, and 0.5 micron films (1K to 30K grit), and is a comprehensive set that is geared toward general edge maintenance and regular repair work. Straight Razor honers will benefit greatly from this set, and those looking for shave ready knife edges will definitely impress!

The Standard Set includes one piece each of 45, 30, 15, 9, 6, and 3 micron films (320 to 6K grit), and is an “all around” set that can handle profiling and reasonable repairs. The 3 micron finish produces a mirror finish, and is “good enough” for most knife and tool applications.

The Coarse Set includes one piece each of 80, 60, 45, 30, 15, and 9 micron films (180 to 1,500 grit). This coarse set is meant for some more serious work, be it cleaning up scratches from belts or diamond plates, or for removing chips or reprofiling. The 9 micron film leaves a great “working sharp” edge that will hold up to abuse, and still do some serious cutting. – For All Types of Sharpeners

May 22, 2014 is now live!

Finally – a forum for sharpeners of all disciplines!

Most forums out there focus on individual kinds of sharpening, such as knives or scissors or woodworking tools; or on specific methods, such as freehand or the Wicked Edge or belt sanders. This is all good – but there are a lot of great sharpening techniques and philosophies that go unlearned or unexploited between the various sharpeners because there is just no cross-talk. is designed as an open space where all sharpening related questions and experiments can be shared and learned from in an objective and supportive open-air atmosphere. There is also an area for knife/blade/tool, handle, scale and sheath making, as these areas often overlap with sharpening.

We invite all levels of sharpeners, and questions about all kinds of sharpening methods, tools, and techniques as we are all on our own journeys. Who knows,  you may just find yourself falling further down the rabbit hole! 🙂 So please stop by and check it out. Ultimately, it just a bunch of sharpeners who love talking about sharpening!

See you there!


Setting a Straight Razor Bevel on a 1K Chosera EP Stone (Video)

March 14, 2014

I was asked to show the best way to set a bevel on a 1K stone, in particular on a Chosera 1″x6″ Edge Pro sized stone. FWIW, I do the majority of my razor honing on 1×6 stones because the 1″ width can easily accommodate most warping, frowning, and smiling blades better than a full sized 3″ width stone can. It’s a personal thing for me, as I have all the corresponding full sized stones as well, but for others, it is also a space and money thing.

Anyway, there are 3 basic strokes demonstrated in the video: Circles, Knife Strokes, and X-Strokes. There is a synopsis below the video. Enjoy!

Circles – are the most aggressive action, and are best for repairing chips or creating an initial bevel on a razor that is in need of serious restoration. I generally do sets of 20-25 circles per side with pressure. It may take many sets to do what needs to be done, but this is the stroke to get that work done. Once a bevel is established using circles, it will need to be refined with knife strokes on the same stone before moving to a finer stone.

Knife Strokes – are single sided back and forth strokes made without turning the blade over. It is “half an X stroke”. This stroke is best for light repair, or a quick refresh of a tired edge that has been maintained for a while. It uses less pressure than the circle stroke, and cleans up the messy edge the circles make. I generally do sets of 20-25 strokes per side. You shouldn’t need too many sets to accomplish your goal here if you’ve used circles, but if you start here, it may take several sets.

X-Strokes – are the usual method of alternating, single side honing strokes, and uses no pressure. This is the least invasive method, and the one that prepares the bevel/edge for the next grit level. I recommend at least 50-100 strokes to firmly establish the depth and consistency of the 1K stone. This will help prevent micro chipping at higher levels.

When to use each stroke?

If your razor is an Ebay special, or has serious restoration issues, then you will want to start with circles, clean up with knife strokes and then finish with the X-strokes – all on the 1K stone.

If you are maintaining a tired shaving edge with maintenance wear, I would begin with the X-Strokes, and if more aggression is needed, move to the Knife Stroke, and if it is really bad, resort to the Circles (and then work you way back up).

I hope this helps!

The Edge Pro and Taiwan’s Coast Guard

November 24, 2012

There aren’t too many Edge Pro users here in Taiwan, and I was quite surprised when I received an inquiry from Mr. Randy Chen asking about some of the Ken Schwartz Diamond Films for the Edge Pro. I immediately called him up to discuss his questions, and found out that he is a career officer serving in the Taiwan Coast Guard, and while he is stationed in Taipei, he is originally from Kaohsiung city. I extended an invitation for him to come over to my workshop the next time he visited Kaohsiung. As luck would have it, he was coming down to Kaohsiung for a ceremony, and our schedules worked out where we were could meet up and play with some of the Edge Pro stones!

Randy likes and collects folding knives as a hobby, and has gotten into sharpening and maintaining them as a way to reduce stress and relax. He doesn’t use them “on the job”  since he is on the administration side of things with the coast guard. He purchased an Edge Pro, and since the steels in his knife collection are varied, he was looking for something more versatile than the stock EP stones.

Randy made it to the workshop, set up his Edge Pro, and we profiled a new knife (sorry, I forgot the name and the steel type). We started off with the Atoma 140 plate, which made quick work of establishing the bevel on both sides of the knife. I chose the Atoma 140 over the 125 or 165 micron diamond papers because while both products are diamond abrasives, the Atoma plates are more aggressive due to the raised clusters of diamonds in a very controlled grid pattern which scratch deeper. Conversely, the more “matted” texture of the films will prevent chipping on more brittle steels, and do an excellent job of cleaning up the deeper scratches from the diamond plates.

From the Atoma 140, we jumped to the 74 micron diamond film. Randy was completely impressed with just how fast the Atoma 140 scratches were removed and the 74 micron scratches established. They are also quite uniform, and even though the edge is still rather unrefined (74 micron = approx #200 JIS), it was almost work sharp. That’s the major advantage to using guided sharpening – you get very sharp knives very early in the game because the shape of the edge is established so consistently and because the texture of the films won’t scratch as deep.

After the 74 micron film, we jumped to the 30 micron film (approx #500 JIS). We could’ve jumped to an even finer grit from the 74 micron, but Randy wanted more perfection in his progression. Once again, the 30 micron scratches were quickly established and I would call this knife work sharp, even though work sharp is generally considered 1K-2K JIS.  Then on to the 20 micron ( approx. #800 JIS). Honestly, the knife could’ve stopped here, but we took it to the 9 micron (approx. #1,500 JIS).  Randy was more and more impressed at each level of refinement, and his edge looked fantastic, and was easily shaving arm hair. For fun, and since our time was limited, we did a quick 5 strokes on the 0.5 micron CBN to give the edge of the edge just a little more “umpfh”.

Randy’s knife was never sharper! 😀

Unfortunately our time ran out, and Randy had to leave – but it’s good to know that Randy is now proudly serving his country with sharp knives at the ready!

Jende Industries, LLC 2012 Sharpening Party!

July 19, 2012

After a short 2 day break from my travels to Chicago and Austin, it was finally time for my Sharpening Party! Ken Schwartz from Precise Sharpening flew in the previous evening, and we had a chance to catch up again – after only 2 weeks since seeing each other at the BLADE show in Atlanta 😀 Greg (Dudly the togi from the knife forums), John Fortune (Hone Ranger), and Ron Swartz of KME Sharpeners arrived with lots of goodies in tow! Greg brought his sword polishing station, complete with stones and a couple of Katanas, John brought the all important Arizona Iced Tea along with a few sharpening goodies, and Ron brought his KME Sharpener with about 20 different accessory stones, including the new Choseras.

Having Ken, Ron, John and Greg would’ve easily been more than enough for an all day sharpening “meeting of the minds,” but we took this party to an all new level – we went international, baby! That’s right, we hooked up our laptops and had Skype video calls from Belgium with Michiel Vanhoudt from Belgian Sharpening, and Jens Skandevall (our famous – and crazy – shaving competition winner) from Sweden.
And this was completely interactive – Jens and Michiel were honing razors in front of each other (we turned the computers toward themselves 😀 ), Michiel gave Ron a Belgian coticule/BBW tutorial, and then we all watched with complete amazement while Greg blew our minds with his sword polishing demo, which took us all too quickly through just about the entire process (obviously not on the entire sword, which would take over a week).

International Skype Call

Greg’s Katana Polishing Demo

We were in the garage for the sword polishing demo for about 2 hours before we decided to head inside for some much needed AC!

Once inside, the fun continued – we brought Michiel and Jens in with us, and we all continued to sharpen stuff – Ron broke out his EDC, clamped it into the KME sharpener, and we documented the entire Chosera series on the KME on the microscope. Ken started bringing out all kinds of Nubatama stones – Japanese naturals and synthetics – for Greg to play with, and John started in on a Maestro Wu folding knife with the Atoma diamond plates for the Edge pro. I played with a few EP stones that John brought and generously gifted to me. Jens started sharpening some knives while Michiel honed up a razor or two. This was just too much fun!

L-R: Greg, John, Ken, Ron

Geeking out with the loupes and microscopes!

The fun continued until about 5pm, when we took a dinner break. This was a 7 hour marathon, and Michiel and Jens lasted over 5 hours with us, and John had to head home to his family ( a few hours later than anticipated!). Since Ron took Ken and me out to the Longhorn steakhouse a few weeks earlier, we decided to return the favor.

After the wonderful steak dinner, Greg took off, and Ron, Ken and I returned to the kitchen to sharpen even more. This time, Ken broke out his famed CBN sprays on Balsa, and put them on Ron’s KME Sharpener. I must say, that CBN is totally awesome, and it works so much faster than you would think given it’s just a spritz or two on the balsa! We continued the sharpening madness until around 11pm, a full 13 hours since we started.

It was really great to spend time with John and Greg again, and for Michiel and Jens to watch us patiently for so long (even though they were included in on the conversations). This was the first real significant amount of time Ken and I got to spend with Ron since he picked up the Choseras for the KME, and I must say, we all got along grandly. What was most amazing about this party was the fact that we all sharpened only 1 knife the entire day – not because we were slow, but because we were able to take the time to discuss and explore things in depth, rather than having to bang out a bunch of knives like we would at a trade show or convention.

What a great sharpening party!

Nubatama Stone Review – with a Damacus Yanagi

November 15, 2011
Nubatama finish

Nubatama finish

Nubatama stones are the newest playthings I’ve recently received from the US distributor, Ken Schwartz of Precise Sharpening. The main idea for me was to work with him to find a series of stones that we can add to the Edge Pro custom stone lineup, but that is another story for later 🙂 I don’t anticipate carrying the whole line of these stones (I got 28 stones in 2 series in all to try out!) or know for sure if they will all make it to the US market. If they do make it you can be sure to find them at in Ken’s Corner.

As I stated, there are 28 stones within 2 series loosely grouped more or less by price into a “higher” Bamboo (竹) series and a “lower” Plum (梅) series.  There is absolutely no indication of a higher and lower quality reflected by the prices, though. The right stone for the job is clearly more dependent on the steel and style of the knife, not the series, which I quickly found out.

There are several overlapping grits, but they all have different properties, and it can drive a man mad trying to keep track!



Nubatamas  - Left Bamboo series, Right Plum series

Nubatamas - Left Bamboo series, Right Plum series

As luck would have it, one of the sushi shops I service called and the chef wanted me to fix up his Japanese Damascus yanagi. They usually have standard clad steel, so this one was more special than the usual no-name sushi knife most of the other chefs have.

Unfortunately, I didn’t get a before picture because I was just playing around with the stones to get a feel for them and didn’t realize it would lead to making a post about it so soon. As everyone knows, I am very much a Shapton man. I was going through every stone with a couple of different knives to get acclimated to they overall sense of how these stones would work, and ultimately compare to Shaptons.

Back to the knife – I started off with the 80 grit belt sander and then cleaned things up a little with the 240 belt. From here I played with the Plum and the Bamboo 180 grits. For this specific knife, I found the 180 Plum to be better suited for removing the belt scratches from the clad steel, although there wasn’t much for the stone to do here. I found that a slight trickle of water helped keep the stone working fast and refreshing the abrasive. There was no real slurry/paste forming. While the stone did release it’s abrasive, dishing was rather minimal. There is a solid feel, with a little cushion, similar to a Chosera, but with the aggression of a 180 grit.

180 Plum Nubatama

180 Plum Nubatama

Next up was the Plum 320. The #320 Plum can be used without running water, and in fact, works better with just a light coating of water to keep everything wet. A little paste did form, and since I had done my initial shaping on the belts and 180 grit Plum, I was now set on cleaning up the scratches. Overall, this stone left an even 320 grit scratch pattern with a little bit of “graying” on the bevel that is indicative of a polish beginning to form.

#320 Plum Nubatama

#320 Plum Nubatama

Then I moved to the 400 Bamboo. Here’s where things got very interesting. On other stone series, such as  the Choseras, they begin at 400 grit. Well on the 400 Bamboo Nubatama, you must have your initial shaping finished already. This stone does not do any “work” as far as shaping is concerned – and believe me, I tried! You are officially polishing at this point.

A wonderful thing about the 400 Bamboo Nubatama is that it seems to know just how much abrasive to release to form a paste, while the stone itself is still quite solid underneath. I occasionally added a drop of water to keep the paste moving around. (I ended up coming back and spending a considerable amount of time on this stone in the end.) The end result was more graying of the bevel, but with still evident scratches, although they were not as deep (technique plays a role here, too. I purposely used the paste and did not try to use the stone.)

#400 Bamboo Nubatama

#400 Bamboo Nubatama

Next up was the #800 Bamboo Nubatama. Once again, while other stones are just beginning the sharpening process at this level, the Nubatama Bamboo 800 is polishing. And like the 400 Bamboo, the 800 seems to know just how much abrasive to release to form a paste. By the end of this stone, I had a clear, clean view of the Damascus pattern, and could see any imperfections and scratches I had missed on earlier grits. An interesting not here is that when wet, the contrast of the bevel was easily seen, but when the bevel was dry, there was more of a grainy gray finish and less contrast.

#800 Bamboo Nubatama

#800 Bamboo Nubatama

Then onto the #1200 Bamboo Nubatama. Once again, things got interesting. First of all, this stone has a serial number. That raised an eyebrow….. and on top of that, it looks like a big brick of dark chocolate. 🙂

This stone is much softer and a lot muddier – there is no grit release as much as there is mud release. Think of an Aoto, in fact I am calling it that. (sorry Ken) The end result was a smoother finish on the bevel, which enhanced the dry contrast of the Damascus pattern.

#1200 Bamboo Nubatama

#1200 Bamboo Nubatama

The finish off the 1200 was probably “enough”, but hey, I got stones that go up to 10K! So the next stone is one of the most expensive stones in the bunch – the 2K Bamboo.

I must admit my Japanese Natural stone finish experience /aesthetic sharpening is zero so I don’t know what I was supposed to see on this stone, or if it was even meant for single bevels…but the stone was rather soft and chalky compared to the stones in both series up to this point.  Time will tell on this one. Obviously, there needs to be some more exploration with this stone to unlock its potential. Either way, it seemed to make the bevel smoother than the 1200, and seems to give more overall grayness to the entire bevel – both the soft and hard steels.

2K Bamboo Nubatama

2K Bamboo Nubatama

Lastly, I used the 4K Bamboo Nubatama. Once again, something interesting happened. I usually sharpen the hollow ground side of a single bevel knife first, since the stone is at it flattest, and then do the bevel side. Well, I started with the hollow ground side, and it was terrible – nothing was happening and I was thinking this was not a stone for yanagis. So I flipped the knife over to be thorough, and suddenly, the softer damascus steel mixed with the stone and the stone instantly came alive!

That was cool.

4K Bamboo Nubatama

4K Bamboo Nubatama

That’s where I stopped because of limitations to my time and the grit of the sushi shop 🙂

Thoughts and Conclusions

Everyone knows that Shapton sharpening stones are the standard by which I compare all other stones to, but the Nubatamas I tried for this review are the first stones to come around in a while that don’t try to necessarily compete in the same way (other stones in the pile do, though). There’s still a lot of work to do with learning about these stones, but the stones here are clearly more geared toward polishing and aesthetic sharpening, meaning you do your “work” at the lowest levels, and then work toward creating a beautiful finish.

These may even be a very real synthetic solution to using Japanese Natural stones, and are unlike other synthetics that try to produce aesthetic finishes that I have tried.

Once again, the money shot!