I have a DeWalt 4 1/2" angle grinder. I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? Or do I need a different grinder?

Thanks,

Andy Barss

What's that Lassie? You say that Andrew Barss fell down the old
rec.crafts.metalworking mine and will die if we don't mount a rescue
by Sat, 24 Jul 2010 21:21:15 +0000 (UTC):



I have a DeWalt 4 1/2" angle grinder. I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? Or do I need a different grinder?


I made a custom 'washer' that goes on the shaft and has a recess to
take the 7/8" part of the nut. I made the thickness of this washer
just right so that the shaft is just flush with the nut when tight.
This keeps the cutoff wheel as far away from the gear housing to allow
better access in tight places.

--

Dan H.
northshore MA.

On Jul 25, 7:21*am, Andrew Barss wrote:
I have a DeWalt 4 1/2" angle grinder. *I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? *Or do I need a different grinder?

Thanks,

Andy Barss

This is quite common - most decent tool shops will have shims made for
just this purpose, a few cents each - take the grinder and disc in
with you, select the one you need....

Andrew VK3BFA

On Jul 24, 5:21*pm, Andrew Barss wrote:
I have a DeWalt 4 1/2" angle grinder. *I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? *Or do I need a different grinder?

Thanks,

Andy Barss

A thin piece of non-corrugated cardboard works fine for a shim washer.

Dave

On Sat, 24 Jul 2010 21:21:15 +0000 (UTC), Andrew Barss
wrote:



I have a DeWalt 4 1/2" angle grinder. I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? Or do I need a different grinder?

Thanks,

Andy Barss


Easy fix. Stick in a washer with a 5/8" hole


Gunner

One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

Home Depot, etc. Sells an adapter for flat cutoff disks. About $2. goes
on in place of the cup washer.

"Andrew Barss" wrote in message
...


I have a DeWalt 4 1/2" angle grinder. I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't
tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? Or do I need a different grinder?

Thanks,

Andy Barss

In article ,
Gunner Asch wrote:

On Sat, 24 Jul 2010 21:21:15 +0000 (UTC), Andrew Barss
wrote:



I have a DeWalt 4 1/2" angle grinder. I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't
tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? Or do I need a different grinder?

Thanks,

Andy Barss


Easy fix. Stick in a washer with a 5/8" hole


Gunner

One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

To date, every one I've had held cutoff discs quite well by simply
putting on the outer retainer backward. Mine all could use a 7/8 hole
disc or a 5/8-11 one. The 7/8 retainers each had a ring that filled half
of such hole just enough to tighten solidly on a standard thickness
disc. It would tighten adequately on a 7/8 half-thickness cutoff disc
with the flat side of the outer retainer drawn up against it. You're not
using the disc flat to the work. So the boss ring on the outer retainer
being exposed doesn't matter as long as you don't set it down on
anything while the grinder's turning.

On Jul 24, 3:21*pm, Andrew Barss wrote:
I have a DeWalt 4 1/2" angle grinder. *I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? *Or do I need a different grinder?

Thanks,

Andy Barss

DeWalt sold a "diamond wheel adapter" for just this purpose. I've
used these with the "Razor Blade" cutoff disks, run about .020", grabs
them very well. On some other makes you just turn over the bottom
washer, HF does it this way on their mid-grade cheapie. They won't
grab the thinnest cutoff wheels available, but good for most.

Looks like they've dumped their whole line of angle grinders and have
all new models and accessories, was just on their web site. Closest
thing they've got is the "Type 1 wheel adapter" now. Guess I'll have
to keep that adapter under lock and key to keep it from wandering.

Stan

On Jul 26, 1:34*pm, wrote:
On Jul 24, 3:21*pm, Andrew Barss wrote:

I have a DeWalt 4 1/2" angle grinder. *I tried mounting a cutoff wheel
(thinner than a regular grinding wheel) yesterday, and found I couldn't tighten the
nut enough -- because the wheel is thinner, it spins freely even when the
flange is poperly seated and the nut is fully tightened.

Is there a fix for this? *Or do I need a different grinder?

Thanks,

Andy Barss

DeWalt sold a "diamond wheel adapter" for just this purpose. *I've
used these with the "Razor Blade" cutoff disks, run about .020", grabs
them very well. *On some other makes you just turn over the bottom
washer, HF does it this way on their mid-grade cheapie. *They won't
grab the thinnest cutoff wheels available, but good for most.

Looks like they've dumped their whole line of angle grinders and have
all new models and accessories, was just on their web site. *Closest
thing they've got is the "Type 1 wheel adapter" now. *Guess I'll have
to keep that adapter under lock and key to keep it from wandering.

Stan

OK, found what I have he
http://www.toolking.com/dewalt-dw470...-inch-grinders

Or, for about 2 1/2 times that price, you can get the HF number on
sale using a 20% off coupon, your call. The link has the DeWalt
catalog number, should you go searching.

Stan