![]() You can't get inside a curve or corner easily or safely. You cant get a straight surface (please don't as a rule use the side of any flat hard wheel - use a cup wheel) You can mount rubberized wheels, wire wheels, various types and grits of hard wheels, and diamond wheels. (Back in my days in public accounting, one of my clients manufactured grinding wheels. A wheel that's great for HSS will probably suck grinding common low carbon steel.and so on. There are thousands (literally) of specific purpose wheels that will efficiently do the thing they're designed to do-be that fast stock removal, fine finish, or something else. Most of us just use a general purpose wheel that really isn't very good at anything. Then there is the whole subject of what wheel to mount. With HSS, you'll burn your fingers long before affecting the tool hardness. With a 3,450 RPM grinder, it is pretty easy to overheat a high carbon tool and ruin the temper leaving the metal softened. This is because they are more likely to be grinding high carbon (v. ![]() BTW, if you think a wheel has _ever_ been damp and exposed to freezing temperatures, throw it out.Īs says, woodworkers often look for 1.725 RPM grinders. Remember where your face normally is with relation to the wheel. You really don't want to find out what happens when a wheel explodes. Bigger wheels are also heavier and require a beefier motor and bearings and are thus generally more expensive. At a given RPM, an 8" wheel has 33% higher SFPM than a 6" wheel. The surface feet per minute from the grinding wheel depends on both the RPM's and the wheel diameter. With grinder its usually gets to be choppy, with belt its nice and smooth and with fine belt even shiny.Ĭlick to expand.As they say, "it all depends": is far more uniform with a belt then a grinder. Finish on a larger drill but, chisel etc. Oh belt sanders with finder belt are also great for sharpening knives - I see them all the time used for that. ![]() I can see some use for a "metal workers" belt sander for cutting different shapes into a pipe but I guess there is a reason "regular" belt sanders are mostly wood working machines - I never saw them in a metal shop. All tungsten is done on small grinder 6" or 8" with soft wheel. I also find that basic sharpening is far easier on a small grinder - you have more control. I guess 6x48 is more powerful for metal then your average princess auto 8" grinder but is no match at all against Baldor 3ph 3hp grinder. To be honest I though the belt would get more use - it just is no match for a large grinder. ![]() If I need to remove lots of steel nothing beats a grinder - so much so that its more about cooling the metal then actually grinding. The belt gets rare use mostly for cleaning larger drill bits. My belt sander 6x48 never got the round part used - maybe a delete. Then the big guys at 3hp and 12" or even 14" grind wheels I can easily remove stock. Then the little soft grinder wheels on two bench grinders. I mostly use wire wheel on my little 6" bench grinder. ![]()
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