long cutting burrs?

[Hemlock]

I've seen them at shows, carbide cutting burrs maybe four or six inches long. I need some to reach up the exhaust port of a two stroke cylinder which is a bit tight for the flex shaft on my Foredom cutting tool. Anyone have a line on good quality, availability and price? Need some for cast iron now, but will want to cut aluminum later.

 

[JDon99]

Found these in a quick search, I've been wanting to put a set of these together for cylinder head and exhaust work.

http://www.carbideprocessors.com/sgs/long-shank/

 

[purplezr2]

I bought a Drillco off Amazon, is worked really well, I started a thread here about them but didn't get any feedback

 

[shoot summ]

When I was doing two stroke performance work I bought mine at what is now burrs4less. I also bought a few from ccspecialtytool.

Not sure your experience level on porting, be careful in the exhaust port, raise it too much and you move all of the power to the higher rpm's.

I did a lot of porting before 2 strokes died, let me know if you have any questions.

 

[Hemlock]

Thanks for the tips, I'll check them out. Shoot sum, two stroke isn't quite dead yet! Sad that the racing support isn't there any more. Some of the modern designs are so much cleaner than they were, which is the big strike against two stroke. I think four stroke lawn equipment is as big an impact to the environment.

 

[Hemlock]

I took a look, and found another problem. My Foredom tool will not fit a .25" shank. I tried with drill bits, and it will fit 3/16, .193" was the actual max. I looked at the link posted, Amazon and Ebay, but didn't see anything with a smaller shank. Guess I'll have to consider a different tool. Too bad, I really like the Foredom except for this issue.

 

[shoot summ]

Which Foredom? Mine has interchangeable hand pieces, at least one of them has different collets for other sized burrs, 1/4" or 1/8" are all I've ever run though.