Check out what I got for $40

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KennyB

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Jan 19, 2010
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Got these and two hand files for $40 today. I'm not sure what I'll be able to use the bench grinder for, but I don't think it will be that ideal for grinding in my primary edge angles--though maybe I'm wrong? In any case, it was a packaged deal, and I can probably find some other use for it. Maybe get some buffing or sanding wheels? Either way, the wheels on it aren't in very good shape, probably need to true them or just replace them completely.

 
as far as any knife work those hard wheels are totally useless. throw'em out and put on your buffing wheels or build a work table on there for a grinding wheel. the vice is worth its weight in gold though..
 
shawnpatterson said:
as far as any knife work those hard wheels are totally useless. throw'em out and put on your buffing wheels or build a work table on there for a grinding wheel. the vice is worth its weight in gold though..
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You mean a rest to put the blade on to keep an angle? Also, what kind of wheels would be suitable for knife grinding?

I think I might do that and get some buffing wheels as well. Nothing wrong with a nice high polish.
 
He is saying that not very many folks use a bench grinder for blade work. Some for strictly profiling so they do not burn up belts, and others 100% Majority of it has to do with lack of funds for any form of belt grinder when first starting out. Your concern about the workrest is legit, not much area to work with there. The wheel so close to the motor housing presents an issue to others working with bigger blades. Anyhow it can be done though. With your grinder and a welder, you could make a larger workrest for it if you are up to it.
 
If you use hard wheels like sewn muslin or felt with Jantz 400 grit brush-on compound, you will find the grinder to be very useful. The other side can be used with sewn muslin and green or gray compound, for polishing.
 
Or just put good grinding wheels on and use it for shop stuff. I haven't found many uses for a bench grinder for making knives, but works great for welding projects and sutch. Of course a belt grinder works great too for deburing, but the grinder is cheaper to operate than buying good belts. Or you could just convert to a buffer, though be carefull, most grinders are in the 3600 RPM range.
 
Will52100 said:
Or just put good grinding wheels on and use it for shop stuff. I haven't found many uses for a bench grinder for making knives, but works great for welding projects and sutch. Of course a belt grinder works great too for deburing, but the grinder is cheaper to operate than buying good belts. Or you could just convert to a buffer, though be carefull, most grinders are in the 3600 RPM range.
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Yeah, it's rated at 3400 RPM or thereabout. Will that mess with the heat treatment even while polishing?

Would the wheels on the grinder be helpful to me at all in heavy stock removal versus say a hand file? I understand that they will not remove nearly the same amount of stock as a belt grinder, but I wonder about the possibility of making hollow-ground blades with it.

Of course having a method of power reprofling also sounds like a good idea as well. I'm not sure if I have access to a welder to make a work rest though, but I'm planning on making one anyway since I at least want to be able to sharpen some drill bits on it.

What kind of wheels should I buy for it for grinding purposes? I like the idea of using it for buffing so I'll probably look for the ones Bill mentioned. As for metal grinding, I use to grind drills and lathe bits on aluminum oxide wheels, but they never felt like they were really capable of removing all that much stock.
 
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