Tien
off to a rocking start
Member since June 2016
Posts: 17 
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Post by Tien on Jul 26, 2016 13:31:03 GMT -5
Anyone know how is the thickness of a trim saw blade measured? Is it the thickness of the steel blade itself or the thickness at the rim where the diamond is?
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Post by Drummond Island Rocks on Jul 26, 2016 13:39:14 GMT -5
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Tien
off to a rocking start
Member since June 2016
Posts: 17
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Post by Tien on Jul 26, 2016 14:25:49 GMT -5
Thanks!!
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Post by johnjsgems on Aug 4, 2016 12:28:40 GMT -5
MK/BD blades are core thickness. Rim will be slightly thicker. Some Chinese blades are listed with rim and core like 10" X .040"-.044" X 5/8". Some just give one measurement and you have to ask supplier. Generally you can tell roughly by listing if it will work for your application. If you cut something valuable opt for a thinner choice. The several thousandths difference between core and rim shouldn't matter much. If you cut a $10K opal you want a really thin .006" or something that won't last but saves material.
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Post by mohs on Aug 4, 2016 16:34:50 GMT -5
My Pro-Slicer blade is
6" x .012 thk x 5/8 hole
not sure why the name is thk --which mean thick, I guess
but they mean kerf
anyway its a very thin kerf
for delicate soft rocks
and will last a good while
if use gently
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Tien
off to a rocking start
Member since June 2016
Posts: 17
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Post by Tien on Aug 4, 2016 18:40:13 GMT -5
Thanks! I use a 0.012" blade with my faceting machine. It's photo paper thin. On my other trim saw I use for cabbing material, I currently have a blade that is 0.07" thick at the rim. It's old and doesn't cut well but I can handle that. I just hate how thick it is. I was looking at the MK-303 8" blades at 0.032" thick and 0.06" thick. If 0.06" is the core width, the rim would likely be similar in width to my current blade. The 0.032" looks like the better option but I've never seen it and am not sure if it is so thin that I might break it easily if I hand feed my stones and push to the side a little too much. Has anyone used it? Is it fairly sturdy & rigid?
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Post by johnjsgems on Aug 18, 2016 14:23:01 GMT -5
.032" is almost 3 times thicker than your .012" blade and plenty rigid in 8". I used .032" on my 10" saws for hand cutting carefully with no problems.
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Tien
off to a rocking start
Member since June 2016
Posts: 17
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Post by Tien on Aug 18, 2016 14:32:41 GMT -5
Thanks! I did get the .032" blade, along with a vice and it works perfectly.
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Post by Rockoonz on Aug 20, 2016 13:03:48 GMT -5
We use .032 and .040 blades in the club lap shop, both survive the newbies.
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Post by johnjsgems on Aug 22, 2016 11:05:31 GMT -5
.032" works well for careful hand cutting. ith a power feed it is usually best to opt for .040". Most clubs that buy from me buy .050".
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Post by Rockoonz on Aug 22, 2016 23:51:18 GMT -5
.032" works well for careful hand cutting. ith a power feed it is usually best to opt for .040". Most clubs that buy from me buy .050". Trim saws only, we have a 10" oil saw for splitting small nodules and hand slabbing. |
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