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Grinder Belts

Greg Agresta

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Types of belts I'm learning is up to your preference on how well you want your finish to look.  From my understanding it's all on a personal preference.  Everybody here is going to say something different.  So you will probably get different answers on here.

Edited by AndrewB
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I generally us a 36 or 40 grit for rough grinding and breaking down the edge after hardening, a 100 grit for cleaning up the lower grit, blending, getting down to sharpening thickness, and finally a 320 to produce a finish from which you can start hand sanding, and take the edge down to zero...

Jake Cleland - Skye Knives


"We can't solve problems by using the same kind of thinking we used when we created them."

"Everything should be made as simple as possible, but not simpler."

"Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."


Albert Einstein

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People usually go through the lower grit belts the most. Personally I use 80 grit belts for general shaping and profiling, specifically the blaze ceramic belts. For wood I use whatever cheap AO belts I can find, normally from Combat Abrasives mentioned earlier above. The rest for metal (wood you generally use AO) I use the 3M Trizact belts, and I absolutely love them. They stay good for a long time, the ones I got months ago still holding up. Like Andrew said though, everyone seems to have their own preference and even then its always changing.  

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My process is typically 80g ceramic > 120g ceramic > 220g zirc > heat treat > 320g j-flex > 400g j-flex > trizact > scotchbrite. 


Jeff H.

"Give a man fire and he will be warm for a day. Set a man on fire and he will be warm for the rest of his life."





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Already answered, but in case you want more input...

If you only want three types of belts on hand, i would vote for 60-120-320. If a higher polish is desired, hand sanding is the way to go from then on. 

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