Die Grinders for porting

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The pnumatic one I have uses more air that a 1 hp tank can keep up with.
Why are electric die grinders never mentioned?
farmer kev
 
they cost more.

a good electric cost around $120...vs a $15 cheapy air powered one. for the air one try running it at lower speeds using a regulator.

nick
 
8) another reason for air powered die grinders is they run much cooler than electric ones.
 
All professional porters use electric.

Go to Sears or Harbor Freight and ask for a 1/4 inch die grinder. It will have the long snout for getting into the ports and be heavy duty.

From Sears it's $85, from Harbor Freight it's $50
Also pick up a router speed controller, it will allow you to vary the speed of the grinder with out loosing torque, Harbour Freight about $25

John
 
SAFETY -----------------
Stones and hard rolls have rpm limits and can/ WILL explode.
Long shaft burrs can bend under centrif forces when deflected and beat the %&$#@* of your fingers.
Wear a dust mask, wear a dust mask, wear a dust mask!!!!!!!!!! Metal dust can cause pneumomia. A shop vac suction hose hook up to the oppesite side of the port helps.
Faster speed- faster work----- slower speed- better work.

Some burrs have screw in shafts which can be un-screwed and longer shafts used. The longer reach can make the job a lot easier, 4 inch shafts is about max needed. Keep cutting speed down for safety.
 
Well, just bought a 1/4 electric Millwalkee.(SP)?
I know what you mean bout keeping cool, thats the proablem, I seem to do this kinda work in winter and the shop is only 50 deg, like workin with icecubes!
 
I use a 1/4" Makita. A lot. After I finally got one about 10-12 years ago still seems I can hardly keep it put away. It still runs great and has never given me any trouble. The more attachments you get makes it even harder to put away. You will find many ways of using it and wonder how you ever lived without it. You get what you pay for with tools but if you are not going to use them much the cheaper tools will do. Just don't think they are the same as the better ones. They are not. If you are going to use any tool a lot buy a good once, that's better than buying a cheap one twice. The heat issue is no big deal.
 
Go to any good auto swap meet and you will find Carbide Burs in all kinds of configurations. Average price is $5 to $10.

John
 
Not much chance here in central Iowa after summer is over, ebay to the rescue. All I have right now is some mounted stones, they worked well enough for polishing up my pickups cylinder head.
Speaking of ebay, there is a glut of cheap import electric die grinders, anybody know how bad they are?
Only ones I would bid on were Milwaukee, DeWalt, Bosch or Makita.
farmer kev
 
The difference between a stone-equipped Dremel and a single cut carbide burr on a ¼" grinder is chalk and cheese. While the die grinder user munches 3/16" of cast iron, you could read War and Peace holding your Dremel in the other hand.

But this relative lack of bite can be the saving grace for the beginner. My air tool has a real "kick" if it gets out of line and hooks in too hard.

Oh, the good carbide cutters here are UK made, "Garryson" brand at about $70 each. Think I have about 5 different profiles.

The Dremel absolutely kicks butt on the flex extension, though.

Cheers, Adam.
 
I have a burr set with 12 various size and types of burrs and a REAR exh air die grinder. Make sure it is rear exh or you will be blowing oily air all over your work piece and blowing filings everywhere. (ok, so they go everywhere anyway Lol)

I've tried air and electric and prefer air. Of course my shop has an idustrial compressor which puts out 60cfm @ 120psi :shock:
Perhaps if I had to work at home with my own compessor, I would want electric too! :lol:
 
[Oh, the good carbide cutters here are UK made, "Garryson" brand at about $70 each. Think I have about 5 different profiles.]

$70 each? So about $50 US? Yikes. How good are they? I always love quality tools and I know it's quite possible they are worth it. But I also get mine at swap meets, I won't spend over $5 each. (I wonder if the "Garryson" ones are 10 times better?) I have a little boxful. Retail at an industrial supply house they would be $15-$20 a piece or so.[/quote]
 
After looking at that first link and calculating the VAT then converting pounds to dollars I come up with approximately the same price as what you might pay retail here. Addo does it cost that much :shock: to get this kind of stuff in Australia?
 
I was under the impression that visitors do not pay VAT.


-=Whittey=-
 
rmt, it's a bit of a poor choice here. We either get cheap inferior Asian crud or the good gear from wherever. (Italy, UK, US - depends on tool type.) The local prices may be marginally higher than if I ordered from one of Whittey's suppliers. VAT is exempted on foreign orders; that's why they list it so.

I can't see why they would be worth you ordering if there are cheaper micrograin carbide tipped or solid carbide tools in the US for less money. And I'm sure there are.

Regards, Adam.
 
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