Reply to "porting kit ?"

bosswrenchMember

There are two basic types of die-grinders: air powered and electric. Both take 1/4" shank burrs and I recommend carbide even for easy-cutting aluminum. The air grinders are cheaper and run cooler but you will need a pretty big compressor to run one. If you go with air, before each use, squirt some oil on the air inlet hole- this alone will extend the life of these little grinders by maybe 6X. There are also front exhaust and rear exhaust; front exhaust may disturb the grinding dust in ports, making it hard to see what you're doing.

It's surprising how hot the protruding snout of an electric die-grinder gets after 5 minutes of use. When I had only an electric one (Sears Craftsman) and was working on cast iron, I wore welding gloves....

11/4/171:34 PM

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