Thread: Extra-long carbide spiral bits

For anyone interested McJings have started a machine tool section. Metal lathes, woodlathes, planers, sanders etc.

Not fully populated yet, but some interesting stuff.

Originally Posted by Krunchy

I think that there is a public holiday to celebrate the NRL grand final today.

Cheers,
Krunchy

Krunchy,

No; today is Labour Day in NSW; I don't think they celebrate it with parades of tanks and ballistic missiles, like Stalin and Krushchev did. But no doubt the true believers will be singing Tannenbaum, when they are not setting up Swiss bank accounts.

Rocker

Originally Posted by Rocker

Krunchy,

No; today is Labour Day in NSW; ................, when they are not setting up Swiss bank accounts.

Rocker

Out of date Rocky, we now favour the Dutch Antilles, Vanuatu and the Cook Islands.

Originally Posted by Bodgy

Out of date Rocky, we now favour the Dutch Antilles, Vanuatu and the Cook Islands.

Bodgy,

Yer right; that was Richo's mistake; these has-been pollies are not up with the latest tax havens

Rocker

Originally Posted by Rocker

Krunchy,

No; today is Labour Day in NSW; I don't think they celebrate it with parades of tanks and ballistic missiles, like Stalin and Krushchev did. But no doubt the true believers will be singing Tannenbaum, when they are not setting up Swiss bank accounts.

Rocker

Well thats the last time I trust anything I hear on the radio!! :eek:

Comrade Krunchy

Originally Posted by Rocker

Bodgy,

Yer right; that was Richo's mistake; these has-been pollies are not up with the latest tax havens

Rocker

If one buys stock in a failing business, insured to 400% and it just happens to burn down next week and you got the benefit of Rene's wisdom, one would think that one would have the minutiae under control??

Oh...


(No, not a mention of anything untoward. I am happy to know that the 5/16" solid tungsten endmill ($10 worth) I have been using today is quite alright.

Even nicer when it slips into the 8mm collet in the Makita perfectly. )

Originally Posted by Harry72

Their still there Rocker!
3/8th #7469
5/16th #7466

Harry,

The bits I got from McJings today after ordering those numbers did have 1/2" shanks but their cutting lengths were only 51 mm and 25 mm respectively, which is less than what they claim (2 1/2" and 1 1/4") on their website. But I won't complain, since those cutting lengths are enough for me.

Rocker

Originally Posted by Bodgy

Out of date Rocky, we now favour the Dutch Antilles, Vanuatu and the Cook Islands.

that will soon change when the sea level rises <snigger>.

Rocker,

I was after a 5/16 bit today. Rang McJing, they said they had 5/16 bit but 1/2" shank. No 5/16 shank? Hold on ... yep here's a couple. You want hardened steel or solid carbide?

Pays to ring 'em up.

Tex

I realise this is an old thread but I just made a mortising jig and need an upcut spiral bit. I will lose 16mm in depth due to the base of the jig, and I'm trying to get 30mm minimum depth for my mortises.

The options are from McJings:
long series end mill-1144-8L 8x35x82 8mm shank (I'm supposing this gives a 35mm cutting length with 8mm cutting diam)
upcut spiral - 7466 - 5/16" diam 1 1/4" cutting length 1/2" shank (Rocker said it only has 1" cutting length)

I would rather the end mill as it has a longer cutting length, but will it be OK in a single speed Makita router? and can I get a collet for 8mm to 1/2"?

If I go with the 1144-10L end mill (10mm cutting diameter) which gives me longer cutting length I will only have 5mm walls for my mortises in 20mm thick hardwood. would that be enough?

Garry

Hi Gary...

I use a 10mm endmill in 20 mm timber frequently. Since there's not any real stress in the sidewalls during machining it is ok. The endmill you want (without looking at the items you mentioned) is a two flute* centre cutting endmill (some are ground so that they cannot be plunged because of the geometry where the lips of the flutes meet)

I have used mine in a single speed router, same as a dedicated spiral upcut bit. Cheaper tooling may have some runout, which can cause problems.

*two flute because the 3 and 4 flute tools cannot clear the chips fast enough, and can overheat and fail.

Cheers

Greg

Plunger,

I got a 3/8" diameter solid carbide spiral upcut with a 2" cutting length from McJing's; it has a 1/2" shank. A 3/8" mortice in 3/4" thick wood is a bit big; but but it would be fine in 1" stock. It is a pity that you used 16 mm thick material for the platform of your jig; 12 mm would have given you an extra 4 mm cutting depth. Lee Valley sell 1/2"-5/16" (8 mm) bushing adapters; I am not sure if there is a local supplier for them.

Rocker

There is at least one local supplier. You guessed it McJing.