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HybridZ

porting can be helpful


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sorry gentlemen... but no where did i mention the use of a dremel.

 

this tool is an air powered pencil-grinder, and i've taken metal off VERY easily on a cast iron block with a stone. I've also removed welds from a heat shield using a "dremel" brand pointed bit that had an aggressive tooth on it. I'm pretty damn sure it can every bit as effective as the long-shank large collet versions. I GUESS WE'LL FIND OUT cause my RB26 head JUST LANDED :-D:grin::-D:grin::-D

 

I still don't understand why people hold the air-grinder at the back and port like they're churning butter with that huge shank almost a foot away into the port. I know that it takes a long shank to reach some of the deeper areas but when it's at the entrance or exit of the port, wouldn't it be easier to have a short-shank bit somewhere layin around?

 

(if u look at one of the pics in grumpyvettes links, the guy has about 5 makita electric grinders hanging to the left of his table, at least one could use a short shank).

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this tool is an air powered pencil-grinder, and i've taken metal off VERY easily on a cast iron block with a stone. I've also removed welds from a heat shield using a "dremel" brand pointed bit that had an aggressive tooth on it. I'm pretty damn sure it can every bit as effective as the long-shank large collet versions. I GUESS WE'LL FIND OUT cause my RB26 head JUST LANDED :-D:grin::-D:grin::-D

Be sure and report back about how badly using the air dremel (that's what it is to me anyway) worked. :wink:

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lately IVE used one of these for porting

 

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=93621

 

there cheap crap and your not out much when they fail so you just look at them as part of the cost and disposable, naturally you need good 1/4" shank carbide cutting burrs and they cost more than the tool, and you need to wear safety goggles

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Be sure and report back about how badly using the air dremel (that's what it is to me anyway) worked. :wink:

 

will do. im working for quality, not speed :-)

i have many die grinders of various sizes. electric ones, air powered ones... this one is the easiest to control and hasn't let me down, so...

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