60 grit stone is here!

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lsboogy
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60 grit stone is here!

Post by lsboogy » Sat Jan 04, 2020 4:57 pm

Ken sent me a beautiful big black Nubatama 60 grit stone. Got it today, letting it warm up on the counter before I soak it tomorrow (depends on if we are going out for lunch in Wisconsin tomorrow) Have the perfect knife for it - sisters Sabatier that has a smile due to poor sharpening over many years. I'll send Ken a couple pics if I get to it tomorrow, he can post pics, I can't

Thanks again bro, and I'll be back for a stone for my technician this summer. He uses hard chisels, and takes very good care of them, but he's still an Arkansas stone guy

jmcnelly85
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Re: 60 grit stone is here!

Post by jmcnelly85 » Sun Jan 05, 2020 12:03 am

Time to chip some knives!

atang
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Re: 60 grit stone is here!

Post by atang » Sun Jan 05, 2020 5:53 pm

You’ll love it Isboogy. I just received a flattener for my 60. Great stone. Speeds up a lot once abrasive is released. Try to not wash off the particles when wetting the stone, it will help keep up the cutting speed.

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Drewski
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Re: 60 grit stone is here!

Post by Drewski » Mon Jan 06, 2020 12:10 am

I couldn't believe how coarse a 60 grit felt when I received it last week. Should be very easy for the major repairs from abused knives. Picked up a 150 bamboo to follow it up, or to start on if there's not serious metal removal required. And a 60 grit diamond plate for flattening.

There's a CKTG 140 diamond plate at the bottom for reference.
20200105_235156.jpg
20200105_235223.jpg

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jbart65
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Re: 60 grit stone is here!

Post by jbart65 » Mon Jan 06, 2020 9:36 am

I’ve found a few knives so hard to sharpen and get a burr I had to switch from a Nuba 120 to the Atoma 140 diamond plate. These knives were causing the 120 to work too hard! Now I need a 60 grit diamond flattener.
(edited)
Jeffry B

nakneker
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Re: 60 grit stone is here!

Post by nakneker » Mon Jan 06, 2020 1:03 pm

Drewski wrote:
Mon Jan 06, 2020 12:10 am
I couldn't believe how coarse a 60 grit felt when I received it last week. Should be very easy for the major repairs from abused knives. Picked up a 150 bamboo to follow it up, or to start on if there's not serious metal removal required. And a 60 grit diamond plate for flattening.

There's a CKTG 140 diamond plate at the bottom for reference.
20200105_235156.jpg
20200105_235223.jpg
That 60 grit is amazing for large stone work, follow it up with a 140, only takes a minute to take the 60 grit scratches out. I wish I would have invested in that long ago, the 80 grit CKTG is good for this too, not quite as fast but still much much faster than the 140 I used for so long.
“The goal is to die with memories, not dreams.”

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Drewski
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Re: 60 grit stone is here!

Post by Drewski » Mon Jan 06, 2020 11:46 pm

Ken, I hope you are ok with me posting some of our conversation here. Some very handy information from Ken regarding these very coarse Nubatama stones:


I soak both briefly - 2 to 3 minutes. The 'trick' is to start using them even though the wster is going through them. Get a bit of mud going on the stone surface. This blocks the water going through them quickly.

Let them dry WELL. Dont put them back in their boxes.(mildew). Let them air dry at room temp for a couple days or until you are ready to reuse them.

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ken123
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Re: 60 grit stone is here!

Post by ken123 » Fri Jan 10, 2020 1:45 pm

Thanks guys for the kind reviews!
Just to complete the picture, I have the Atoma grits (140 400 600 1200) as well as 46 60 100 150 grit plates and a 3000 grit plate. This gives you a full range of plates to work with from major reshaping and flattening to polishing applications.

---
Ken

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ken123
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Re: 60 grit stone is here!

Post by ken123 » Wed Jan 15, 2020 5:01 pm

... and I also have coarser stones, now including 24 grit, 46 grit, 60 grit 120, 150, 180, 220 ... etc.

Ken

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Drewski
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Re: 60 grit stone is here!

Post by Drewski » Thu Jan 16, 2020 10:44 pm

Gave the 150 bamboo a go tonight. Was a bit surprised how quickly the water went through it. I can see why people have a sink bridge, the water just pours out the bottom of the stone. I anticipate the 60 grit to be even more of a challenge. Probably around 10 seconds until the stone top no longer had water on it. I used it quickly in that time to try to build up mud (sand?) and could definitely get some built up on the surface but I felt unsure how long, or if, I should be sharpening without some surface water. It just felt unnatural. I also found that the stone dished pretty quickly but maybe that was due to my improper usage.

It did do the trick with the knife I was sharpening, but it just felt like a lot of work to keep the stone wet. Am I doing something wrong? Do I need to change my expectations? Thanks.

nakneker
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Re: 60 grit stone is here!

Post by nakneker » Thu Jan 16, 2020 11:13 pm

Drewski wrote:
Thu Jan 16, 2020 10:44 pm
Gave the 150 bamboo a go tonight. Was a bit surprised how quickly the water went through it. I can see why people have a sink bridge, the water just pours out the bottom of the stone. I anticipate the 60 grit to be even more of a challenge. Probably around 10 seconds until the stone top no longer had water on it. I used it quickly in that time to try to build up mud (sand?) and could definitely get some built up on the surface but I felt unsure how long, or if, I should be sharpening without some surface water. It just felt unnatural. I also found that the stone dished pretty quickly but maybe that was due to my improper usage.

It did do the trick with the knife I was sharpening, but it just felt like a lot of work to keep the stone wet. Am I doing something wrong? Do I need to change my expectations? Thanks.
You’ll get some good feedback, a lot of guys really like this stone.I have a nubatama 150, it’s a very useful stone and acts just as you describe but it works fast. I’ll put it under a decent stream of water and leave it for 5+ minutes, once it’s totally saturated it gives you a little more time to work. It’s does dish fast but it also works fast, I flatten after every use on a 60 grit diamond and it flattens very fast. I like low grit stones but only use that one when I need some serious heavy lifting done, it does what it’s designed to do well but I do like the feel of the 200-300 grit stones better if I can get away with one. I’ve come to value speed at the early stages of stone shaping or bevel repair, chip repair. It does help in that regard!

Your not doing anything wrong, nature of the beast.
“The goal is to die with memories, not dreams.”

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Drewski
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Re: 60 grit stone is here!

Post by Drewski » Fri Jan 17, 2020 9:07 am

nakneker wrote:
Thu Jan 16, 2020 11:13 pm
Drewski wrote:
Thu Jan 16, 2020 10:44 pm
Gave the 150 bamboo a go tonight. Was a bit surprised how quickly the water went through it. I can see why people have a sink bridge, the water just pours out the bottom of the stone. I anticipate the 60 grit to be even more of a challenge. Probably around 10 seconds until the stone top no longer had water on it. I used it quickly in that time to try to build up mud (sand?) and could definitely get some built up on the surface but I felt unsure how long, or if, I should be sharpening without some surface water. It just felt unnatural. I also found that the stone dished pretty quickly but maybe that was due to my improper usage.

It did do the trick with the knife I was sharpening, but it just felt like a lot of work to keep the stone wet. Am I doing something wrong? Do I need to change my expectations? Thanks.
You’ll get some good feedback, a lot of guys really like this stone.I have a nubatama 150, it’s a very useful stone and acts just as you describe but it works fast. I’ll put it under a decent stream of water and leave it for 5+ minutes, once it’s totally saturated it gives you a little more time to work. It’s does dish fast but it also works fast, I flatten after every use on a 60 grit diamond and it flattens very fast. I like low grit stones but only use that one when I need some serious heavy lifting done, it does what it’s designed to do well but I do like the feel of the 200-300 grit stones better if I can get away with one. I’ve come to value speed at the early stages of stone shaping or bevel repair, chip repair. It does help in that regard!

Your not doing anything wrong, nature of the beast.
Thanks for the reassurance. I did leave it under a tap of water for several minutes, and agreed that it flattens fast with a 60 grit diamond. The use of the 150 made the time on the 400 much faster/easier, which was my main goal in purchasing a 150.

Any comment on if I should be sharpening a blade on the stone when there is no water visible on the top of the stone (it falls into the stone and drains out the bottom)? At this point, there is some mud on the top of the stone, which is moist. It's almost like having some fine wet sand sitting on top of the stone. Or, should I splash a bit of water on the stone immediately after seeing the water disappear? (My gut says to always have water on the stone, but this is easier said than done with a 150 grit. Something that is never difficult with a 400+ grit stone).

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ken123
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Re: 60 grit stone is here!

Post by ken123 » Fri Jan 17, 2020 1:12 pm

Great posts. The 150 is porous and it does wear and cuts fast and flattens fast with the 60 grit plate. You can run it a bit dry until mud builds up. It does run through water quickly. The 24 grit stone is FAR more porous - you can run tap water right through it!
I would suggest just adding a splash of water as needed so that the stone is wet but not necessarily with a puddle on its surface.
Even dry the stone works but leaves black swarf on the stone - which can be lapped off. It is a rougher feel than a mid grit stone. I use mine often. The scratch pattern is a good bit finer than a 140 grit diamond plate.
---
Ken

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