Steel Grind

[BenAnd]

Repairing metal housing.

7/8" steel tube with ends slightly rounded inwards.
I need to remove all and a little more of the rounding inwards.

What material bit for either 1/4" OR 1/8" shank hand drill motor or
Dremel is best to use ?

I have many of these to do.

[tabb...@gmail.com]

For steel, silicon carbide. Alox is much slower, and silicon dioxide best used on hard cheese rinds only. Diamond tends to be very variable. Tungsten carbide is good stuff.


NT

[BenAnd]

How do the vitrious silicon carbide bits hold up ?

[~misfit~]

I'd use the Dremel CBN (Cubic Boron Nitride) wheels. I bought a few to test
them and they are great for jobs with steel.
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

[gghe...@gmail.com]

Can you just re-cut the end?
Maybe a step drill bit, or a conical bit.
(A dremel sounds a bit wimpy for the job, unless it's thin walled
SS.)

George H.

[MOP CAP]

I may not understand exactly what you mean. When plumbers and
electrician cut pipe or conduit they use a conical pipe reamer or for
lighter pipe a flat vee shaped one.
CP

[Ralph Mowery]

In article <5bcf8620-15e5-4969...@googlegroups.com>,
gghe...@gmail.com says...

Did anyone mention a tapered reamer ? The pipe threading machines
usually have them built in.

[bruce2...@gmail.com]

Do they work on rigid? pipe?