FYI, there’s a new and (we hope) upgraded version of the Grit Comparison Table available in the knowledge base.
Please take a look, let us know your thoughts.
Why are the 1500 diamond stones left off??
I was just about to say this. The chart looks great, but I’d love to see the 1500 grit diamond stone and perhaps a few diamond lapping film photos. ??
So far, we just migrated the rows that were already in the table; I know that Clay and team are working on updates/additions like the 1500 stones.
The new chart looks perfect, Chris. Works well on mobile, too. The old one didn’t work so well on my phone.
Nice work!
Absolutely great work! Thanks.
I miss a few items:
- larger photographs would be better, so you can see the scratches better (and were the scratches measured by WE or based on the manufacturer's statements? - which are not always correct).
- the 1500 grit stones
- all lapping films
- the micro fine ceramic stones.
And something that occurred to me: the 400/600 grit stones are mention twice on the product page.
Success!
For those of us that do use whetstones, (Chosera’s and Shapton’s), it’s helpful having them integrated all in one Grit Chart, just like it is. When we are looking to change stone types, such as, diamonds to whetstones to lapping film, we can use this grit size information to make a more informed, better decision when trying to decide on our best progression.
By the way, I found a pretty nice grit chart on the web that’s very extensive: https://docs.google.com/spreadsheets/u/1/d/1VaTf3MXuwuvH-QLwOci4f9B9Zhkbuu1wjoSCZIUsR-o/htmlview#gid=0
By the way, I found a pretty nice grit chart on the web that’s very extensive: https://docs.google.com/spreadsheets/u/1/d/1VaTf3MXuwuvH-QLwOci4f9B9Zhkbuu1wjoSCZIUsR-o/htmlview#gid=0
Thanks, Mark, I had previously downloaded and used that. It has a lot of information and data. The WE Grit Comparison Chart is more concise so, for me, it’s quicker and easier to use.
Our plan is to redo the grit chart completely and to grade each abrasive by its effect on the blade. We will publish the manufacturer’s stated grit and the corresponding micron size of the particle, but that is only a little bit useful. Depending on the substrate, particle density etc., different abrasives can yield wildly different results, so we’ll take clean samples and apply the various grits and then have them imaged, with the scratches counted and measured for width and depth using an SEM. We’ll also put the samples, all sharpened at the same angle, through our sharpness testing machine and will give those results as well. It’s a big project, so it’ll take some time to complete.
Clay, that is going to be an excellent resource when you finally finish it. I imagine it will make quite a splash in the knife community once published. I look forward to it and I applaud you and the Wicked Edge team for taking on the task.
That will be incredible. Thanks Clay.
That’d be awesome, Clay!
The table looks better and I’m glad to see the shaptons on it as well. I’ll also be very interested to see the pics for the 4 thru .5 emulsions since I’ve had some very good results with those in particular. Looking forward to the new one Clay.
GOOD JOB Chris !
Chris I use Blank Leather Strops & Blank Kangaroo Leather Strops. The chart looks great. Thank you For the work you do.
Here’s an image of the type of sample we want to create for the SEM images and measurements:
This is taken at 2000x and shows a very smooth shoulder and the transition to a 400 grit micro-bevel. We’ll be focused on the edge and bevel rather than the shoulder but I’m showing it here to demonstrate the smoothness of the sample we want to start with. I can easily measure the width of the scratches on this sample (5µ-10µ) but I can’t measure the depth. Hopefully they’ll be able to do that at the lab. As we get into finer and finer grits, especially below 0.5µ, the optical scope just won’t be able to focus on the finer scratches well enough to study them.
Wow, that’d be absolutely great!