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Posted by mikecb1 on July 23, 2008, 7:19 am
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I was recently given some as-new taper shank milling cutters (ex MoD I
believe), and I am at a loss to know how to use them!
They are 3/8, 7/16 and 1/2 inch, with 6 flutes, and cutting lengths of
around 2 inches. The shanks have Brown and Sharpe tapers, with tangs
(no draw bar threads).
With some effort I can convert B&S to MT2, and drill and tap them for
a draw bar, but I wonder how they are intended to be used (and why
they all have such long cutting lengths).
Any ideas appreciated.
Mike
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Posted by NoSpam on July 23, 2008, 8:00 am
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mikecb1 wrote:
> I was recently given some as-new taper shank milling cutters (ex MoD I
> believe), and I am at a loss to know how to use them!
>
> They are 3/8, 7/16 and 1/2 inch, with 6 flutes, and cutting lengths of
> around 2 inches. The shanks have Brown and Sharpe tapers, with tangs
> (no draw bar threads).
>
> With some effort I can convert B&S to MT2, and drill and tap them for
> a draw bar, but I wonder how they are intended to be used (and why
> they all have such long cutting lengths).
>
> Any ideas appreciated.
>
> Mike
reamers?
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Posted by Kevin(Bluey) on July 23, 2008, 8:23 am
Please log in for more thread options mikecb1 wrote:
> I was recently given some as-new taper shank milling cutters (ex MoD I
> believe), and I am at a loss to know how to use them!
>
> They are 3/8, 7/16 and 1/2 inch, with 6 flutes, and cutting lengths of
> around 2 inches. The shanks have Brown and Sharpe tapers, with tangs
> (no draw bar threads).
>
> With some effort I can convert B&S to MT2, and drill and tap them for
> a draw bar, but I wonder how they are intended to be used (and why
> they all have such long cutting lengths).
>
> Any ideas appreciated.
>
> Mike
I have some that came with my Myford lathe , I had never seen them
before,I just fit them into my headstock spindle and use them that way .
I use a bar to knock them out .
Mine are definitely end mills not reamers.
--
Kevin (Bluey)
"I'm not young enough to know everything."
bluey69@west.net.com.au
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Posted by mikecb1 on July 23, 2008, 11:33 am
Please log in for more thread options > mikecb1 wrote:
> > I was recently given some as-new taper shank milling cutters (ex MoD I
> > believe), and I am at a loss to know how to use them!
>
> > They are 3/8, 7/16 and 1/2 inch, with 6 flutes, and cutting lengths of
> > around 2 inches. =A0The shanks have Brown and Sharpe tapers, with tangs
> > (no draw bar threads).
>
> > With some effort I can convert B&S to MT2, and drill and tap them for
> > a draw bar, but I wonder how they are intended to be used (and why
> > they all have such long cutting lengths).
>
> > Any ideas appreciated.
>
> > Mike
>
> I have some that came with my Myford lathe , I had never seen them
> before,I just fit them into my headstock spindle and use them that way .
> I use a bar to knock them out .
> Mine are definitely end mills not reamers.
>
> --
> Kevin (Bluey)
> "I'm not young enough to know everything."
>
> blue...@west.net.com.au
Kevin
That's interesting. What bothers me is whether the taper alone is
really adequate to hold a cutter which cuts on its side.
My cutters have cutting edges on the ends as well as the sides, and no
taper at all, so they don't look like any reamers I've ever seen
(though they do have straight flutes....).
Mike
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Posted by Don Young on July 23, 2008, 9:49 pm
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> mikecb1 wrote:
> > I was recently given some as-new taper shank milling cutters (ex MoD I
> > believe), and I am at a loss to know how to use them!
>
> > They are 3/8, 7/16 and 1/2 inch, with 6 flutes, and cutting lengths of
> > around 2 inches. The shanks have Brown and Sharpe tapers, with tangs
> > (no draw bar threads).
>
> > With some effort I can convert B&S to MT2, and drill and tap them for
> > a draw bar, but I wonder how they are intended to be used (and why
> > they all have such long cutting lengths).
>
> > Any ideas appreciated.
>
> > Mike
>
> I have some that came with my Myford lathe , I had never seen them
> before,I just fit them into my headstock spindle and use them that way .
> I use a bar to knock them out .
> Mine are definitely end mills not reamers.
>
> --
> Kevin (Bluey)
> "I'm not young enough to know everything."
>
> blue...@west.net.com.au
Kevin
That's interesting. What bothers me is whether the taper alone is
really adequate to hold a cutter which cuts on its side.
My cutters have cutting edges on the ends as well as the sides, and no
taper at all, so they don't look like any reamers I've ever seen
(though they do have straight flutes....).
Mike
They might be "core drills". I think there are some other names for them.
They are intended for drilling into holes in castings. They drill straighter
and rounder than regular twist drills but require large pilot holes. Sort of
a cross between a drill and a reamer.
Don Young (USA)
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> believe), and I am at a loss to know how to use them!
>
> They are 3/8, 7/16 and 1/2 inch, with 6 flutes, and cutting lengths of
> around 2 inches. The shanks have Brown and Sharpe tapers, with tangs
> (no draw bar threads).
>
> With some effort I can convert B&S to MT2, and drill and tap them for
> a draw bar, but I wonder how they are intended to be used (and why
> they all have such long cutting lengths).
>
> Any ideas appreciated.
>
> Mike