A little demo of the American Mutt bench stone.

FortyTwoBlades

FortyTwoBlades

Baryonyx walkeri
Dealer / Materials Provider
Joined
Mar 8, 2008
Messages
25,998
We just received our first shipment of our new American Mutt bench stones and I thought I'd post up some photos of a bit of work I did with one of my pre-production ones. They're a rather unique stone made of a mix of silicon carbide, aluminum oxide, and a little bit of diamond grit in mixed particle size. What results is an extra-extra-coarse stone perfect for ironing out damage or setting bevels that leaves a finer finish than one would expect for so coarse a stone. All of the "mud" seen here is steel swarf--not loosened grit from the stone! I've found it a very big time saver.

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As someone that uses a coarse stone a lot and is always searching for a better coarse stone I must say, I AM VERY INTERESTED IN THIS STONE!!!
 
My wife tends to be rough on our kitchen knives (I have a few that she's not to touch) and I run all of them thin, so when the edges inevitably get dinged up or rolled over I've been keeping one of these in a holder by the sink and just give a couple quick licks per side and the damage is gone. Then a few more swipes on an Arctic Fox scythe stone I keep with it and it's ready for action again. :) :thumbup:
 
I would be very interested to see a follow up of medium and fine stones in the same formulation. These could be a very good solution to sharpening PM steels when you don't want to use diamond plates.
 
The reason for them being so economical is actually because they're made using waste material from the dressing of mounted points, grinding wheels, etc, and so composition is a total grab bag. The small amount of diamond grit in them is actually from the diamond grinding wheel shedding during the process. As such we aren't really able to have them produced in any other aggression level than what they're at. We'll be doing a more premium line in high quality black silicon carbide called the Manticore series that will have an 80:20 ratio of extra coarse and medium grit, however, that we'll be able to set the aggression on and produce a similar effect as far as the rapid cut/finer-than-usual finish department. We have plans on trying to do some interesting things with superabrasives as well, but those will probably take a few years to bring to reality.
 
Thats pretty cool, just checked your site and realized just how inexpensive it is. I will be picking one of these up shortly. Joined the mailing list too!
 
Jason, please - write up a review. This stone looks like 60+ grit (some particles look rather large), I like to know more on uniformity of scratch depth on simple & mid alloy steels. I rely on fresh belt sections to produce reasonable consistency on cut depth but a stone with some diamond would be faster & cost effective.
Jason B. said:
Thats pretty cool, just checked your site and realized just how inexpensive it is. I will be picking one of these up shortly. Joined the mailing list too!
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bluntcut said:
Jason, please - write up a review. This stone looks like 60+ grit (some particles look rather large), I like to know more on uniformity of scratch depth on simple & mid alloy steels. I rely on fresh belt sections to produce reasonable consistency on cut depth but a stone with some diamond would be faster & cost effective.
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Will do :thumbup:
 
Indeed, some grains are quite large. It contains grits ranging from as fine as 400 all the way down to grains easily visible with the naked eye at a distance--there's a reason we call it the "American Mutt"! It's about as mixed as they come, but it's ready to take a bite out of just about anything. :D Certainly wouldn't want to use an edge fresh off this stone, but it gets the job done very quickly and without needing a ton of polishing it up afterward for it to be back to fine cutting. As I mentioned, it's been a big time saver for me in dealing with damaged edges. I never spend more than five minutes repairing a badly rolled/dinged edge these days.
 
I'm interested in this as well!

My own tinkering has led me to appreciate the effects from multi-size abrasives, I can see where this thing might hog off rapidly AND leave one with a more easily cleaned up edge compared to other alternatives.

A good coarse stone is a real rarity. I'm curious about the Manticore line as well.

Before even trying it I'd like to make one suggestion - is there any way to make this in a 10x3" ? While the 8x2 is super handy and small enough to be held like a file, a little more real estate comes in handy if used on a bench.
 
We do intend on getting some jumbo-sized bench stones done up, for sure. We just started with the 8" because it's a standard size compatible with most stone cradles out there. :)
 
Is the stone intended to be used dry, with water, with oil, or something else? Or just whatever the user feels like?
 
We actually have it in the specifications for all of our stones for them to not have any sort of oil pre-fill so that they can be used with whatever the user so chooses. I personally use them with water, or with thin liquid dish soap when I want better lubrication. All of our stones are designed with water use in mind as the "default" option. Oil provides the best cutting action with all stones, regardless of who makes them or what they tell you to put on them. It's just also the messiest and makes it so you can't really use anything else on that stone in future without a ton of labor trying to leach it out of porous stones. As such, I like to use water or various ratios of water to dish soap. We do have some plans on eventually releasing a line of stones that are specifically formulated to prevent loading in dry use (lower bond strength so it sheds glazed surface to expose fresh grit) but that's in the distant future.
 
I am interested too - will follow! (No order yet, shipping to Canada, again, $27!)
 
Thanks, guys. We're getting prepped to move to a new location, but I'll do my best to get all orders out before the transition.
 
Shipping is a little steep, but I guess that's the norm these days. Turns it into a $17 stone. Still cheaper than a Norton Crystolon shipped. i may give one a try some day.
 
jc57 said:
Shipping is a little steep, but I guess that's the norm these days. Turns it into a $17 stone. Still cheaper than a Norton Crystolon shipped. i may give one a try some day.
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Send him an email... he can stick it in a Flat Rate Box cheaper than what the website quotes (to some locations anyway). Shaves off a few dollars.... :)
 
What is the bond strength of these Mr. 42? Very interesting hone. I too would very much like to try one of these based on the description.
 
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