1" roundover

[megamuel]

Could someone please show me a bit on this website:

http://www.trend-uk.com/en/UK/

or this one:

http://www.infinitytools.co.uk/

....that will give me a 1" roundover?! I know this seems like a stupid question but I am very confused!!! I'll be using my Dad's Trend t4 router which has 1/4" shank. Thanks!

Sam.

[mpotoka]

You probably won't be able to get a 1" roundover without a 1/2" shank

[Dennis H]

Nobody (I think) makes a roundover bit bigger than 1/2" with a 1/4" shank. You need a beefy router with a 1/2" collet to do a 1" roundover. The bit will be 2 1/2" in diameter and very heavy. A 1/4" shank would most likely break, sending a big chunk of 20,000 RPM steel flying your direction... definitely hazardous to your health.

[megamuel]

Ahh I see, I didn't realise... Thats the nice big roundover out of the question then!

[JonP]

Ahh I see, I didn't realise... Thats the nice big roundover out of the question then!

They are available up to 1.5"... pricey, and need that 1/2" collet, of course.
Probably need over 2hp, and with any large bit, need to have speed control to slow down the router to a safe speed. You DON'T want to run something like that at 24,000 rpm! Even my 3/4" roundover is reccomended to be run down around 12,000-14,000.

[---k---]

Even the cheapest routers over here come with 1/2" collets these days. Maybe it is time to upgrade your router?

[Bent]

my P.O.S. Skill router with the "auto eccentric hole option" has a 1/2 inch collet with a 1/4" collet insert

[megamuel]

My Dad only just bought it, just reading up on it now and it says its a light duty router so that would explain it. I don't have a clue about routers (obviously)! I'll have to see if I can borrow one! Thanks for the quick answers guys

[BobEllis]

Why mess with puny 1" roundovers? Check out these ready made 2" to 4" quarter rounds http://www.aitwood.com/StoreFront.As...arter%20Rounds

[---k---]

Bob makes a good point. You can leave a notch in the corner, then fill it with quarter round.

[relder]

A 1/2" collet isn't a guarantee you can swing a bit that big either. My dewalt plunge can't (I learn after I buy the bit) the diameter of hole in the base isn't that big. So measure before you buy.

[---k---]

Ahhhh, the hole in the plastic baseplate isn't a limiting factor. Remove the baseplate and make a new larger baseplate out of MDF or lexan. I had to do this also with my Hitachi. It worked well. I made my new baseplate about 12" long and put a handle on to make it easier to work with and more stable on the work piece. It was ugly, but took about ten minutes to put together.

[---k---]

Photos of my baseplate, and ironicly a 1" bit.

http://delayedbang.com/khanspire/Khanspire-Photos/photo043.htm

http://delayedbang.com/khanspire/Khanspire-Photos/photo044.htm

[relder]

Ahhhh, the hole in the plastic baseplate isn't a limiting factor. Remove the baseplate and make a new larger baseplate out of MDF or lexan.

It is if it's aluminum and integral to the router. See picture: Amazon link

YMMV

[Brian Bunge]

I love my DW621 (now that my uncle referbished it for me) but yeah, you aren't going to get a big bit like that in there. That's why I have a Porter Cable router that sits in the router table!

[Hdale85]

I have a Hitachi MKV12 (I think this is the model) and it does 1/4" and 1/2" Shank...it's a beast

[Brian Bunge]

Oh, mine has both 1/4" and 1/2" collets, it's just that a bit with that kind of diameter isn't going to fit in this particular DeWalt. It will easily fit in the DW618 that I have or the Porter Cable.

[JoshK]

I have a 1.25" roundover bit. Its huge. Its intimidating, its a beast. I plan to use it with my table saw router table insert. I don't want to hand hold the router when using this bit. Something else to consider.

[---k---]

yeah, ymmv with different routers.

Josh, you sissy! I did a 1 1/4" roundover with a hand-held. I swore afterwards I would never do it again, but I did it. :P

[BobEllis]

There's a reason that "smaller" e.g 2 HP routers have smaller holes in the baseplate. That 3" diameter 1.25" roundover bit is spinning a bunch of mass and a smaller router has smaller bearings and internal shaft. I got a lot of vibration and a rough cut with a 2HP Bosch router (very good within its limits) that I slowed down with my variac. I thought it was the cheap bit until I put it in my Hitachi MV12.

The Hitachi MV12 will swing a 3.25-3.5" bit with a standard baseplate. Yep, Dougie, it is a beast and I love it!

BTW, I always keep the cabinet between me and a big bit. It probably wouldn't stop it if it comes apart, but at least it will slow it down a bit.