ok, so i have done this before with some grinding pieces, but I have to think there is a better bit out there for this. I have a air powered die grinder. (like the photo with those bits)

http://www.harborfreight.com/c...44716

 

depending on how much you want to remove, i would think a cut-off wheel would be good with a sanding pad or cookie or a wire wheel on the die grinder for smoothing out.

 

I used bits like these:




but this might be more fun:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stealthmode62 &raquo;</TD></TR><TR><TD CLASS="quote">I used bits like these:




but this might be more fun:

</TD></TR></TABLE>


haha steve, help the *** out, WHERE DO YOU EGT THOS nifty tools,

 

Either tool will work. You just need to mark the block first and stay within the lines. It's like cutting paper

-platinum

 

Die grinder and a carbide bit.
MAC tools, lifetime warranty on both.

 

ouch!

http://www.mytoolstore.com/astro/astdig01.html

82.75 for those bits, that gold plating must be real!

 

I'm feeling the grinder action.

Carbide bits will get it done faster but I'm sure the bits you have will get the job done it will just take ya longer.

 

Sawzall worked for me.

 

carbide bits like those only cost me a few bucks at my local westlakes...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stealthmode62 &raquo;</TD></TR><TR><TD CLASS="quote">I used bits like these:

</TD></TR></TABLE>


Those bits are designed for steel, not aluminum. They clog up almost instantly if you use them on aluminum. Then you have to sit there with a nail and try to pick off all the little pieces of stuck aluminum from the carbide teeth... It sucks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Legion &raquo;</TD></TR><TR><TD CLASS="quote">


Those bits are designed for steel, not aluminum. They clog up almost instantly if you use them on aluminum.</TD></TR></TABLE>

aluminum sleeves ???

and btw they work great on aluminum for me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">aluminum sleeves ???</TD></TR></TABLE>


Hmm... good point. I guess clogging a steel bit with aluminum is better than breaking an aluminum bit on the iron liner. All I know is that I asked about using a steel bit (exactly like the ones posted above) on aluminum in the fab forum and everyone said not to because it would clog the bit. I ignored them and did it anyway and the bit clogged nearly entirely and became worthless. The aluminum pieces really stick in there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Legion &raquo;</TD></TR><TR><TD CLASS="quote">


Hmm... good point. I guess clogging a steel bit with aluminum is better than breaking an aluminum bit on the iron liner. All I know is that I asked about using a steel bit (exactly like the ones posted above) on aluminum in the fab forum and everyone said not to because it would clog the bit. I ignored them and did it anyway and the bit clogged nearly entirely and became worthless. The aluminum pieces really stick in there.</TD></TR></TABLE>

too much rpm

 

 

I had to do this on a buddy's block, I used the same bit pictured above. and worked at it slowly.


Modified by viet_boi_racin at 10:43 PM 3/19/2008