Thanks Gerald. I did a search but did not find this thread.

Extra long slot drill
 

I'd like to ask for a bit of help from the experts in regards to this extra long slot drill from Sutton tools, Australia.

I want to use it to cut a 96mm thick, glued slab of 3x 32mm MRMDF sheets.

The part is not too big, it's roughly 1300x400x96, a perfect rectangle. The milling will consist of pockets, through holes and profiling.

Do you guys think that this is a good tool for the job?

I am planning on using the 12mm diameter one, it has a total length of 153mm.

Any considerations will be appreciated:-)

thanks,
Francis

I would like to know which type of bits works the best for drilling.
I tried small diameter straight cutters(dia3) and also a panel pilot drill bit but it turns into a nice shade of black.:)
My 6mm (1/4") collet doesn't want to clamp a 6mm drill bit and I can't buy a 6.3 or 6.5 of the shelve. The length might also be a problem because it is longer than the router bits, making bit changes a little akward.
Any recommendations?

Try the companies who supply cutting tools for the metal cutting guys on their milling machines. The thing to ask for is a "slot drill" in solid carbide, with 2 flutes. You can use them for drilling or normal sideways CNC routing.

Thanks Gerald. I will ask for a 1/4" instead of a 6mm. The collet should clamp that more effectively.

Johan, the most common router collet sold here in SA is the 1/4" size. But we have been able to get 6mm (and sometimes also 8mm) collets from the suppliers of the routers (or die grinder). I agree with you, a 1/4'" collet cannot be forced to clamp a 6mm bit, but a 1/4" slot drill is more expensive than a 6mm slot drill in our metric country. (80% of my son's work is done with those slot drills)

Johan you can also use a dowel drill bit ,they come in all sizes and if I am not mistaken the actual shaft that goes into the collet is 10mm dia.They come in left and right hand cut.Also when you drill reduce the speed of your Makita to slow and do drill pecking at 4 mm at a time then you won`t set the hole that you are drilling allight.By doing this you clean the drill bit every time it lifts up.

Thanks Hennie. I will check at Mica after work.

Hennie,
Could I ask you to post either a photo or a link to some photos for the suggested « Dowel drill bit », cause when I search through some of my manufacturer list & links, like this Leitz link, the only thing I can find as a dowel drill bit is what I call a Brad point bit.
I cannot see how one can use those for normal sideways CNC routing :confused:.
Drilling....yep...., but other than that ????? wounder how :o!
Thanks to clear this for me and surly others !
Amicalement, Robert ;)

Robert, the original question of Johan (post #43) was only for drilling, and Hennie did not say that sideways cutting is possible.

dowel drill bit
 

Robert I use these bits on the multi borrer and something that I was busy cutting

Thanks for showing the pics Hennie, because the guy at Mica was just staring at me with an open mouth. I will have to source it and the slot drills directly from Durban.

Nice Hennie, how deep is your final piece. I think it is about 1m long, but let me know your max depth. Also show picture of your 3mm ballnose please. My piece I tried on the weekend looks VROT.

PS I am still waiting for that little thing to insert small bits into a 6.35mm shank....

950 mm long x 220 mm wide and 22 mm thick , used a 6 mm ballnose .

Thanks Gerald & Hennie to clear this for me ;)
Thanks for this confirmation…. as we all know too well new tools and even some new tools appellation can immerge out of nowhere. I sometime get the feeling I lose track of some evolution as I get busy with work & my new beast as I still needs to tame it & me to train more with it !! :cool:

Salut Robert
c'est tu bon pour toi http://www.yg1usa.com/feature/itemde...sp?edpno=01593
treize piastre et demi chez http://www.industrial.ca/ au nord de la 40 alentour de l'acadi
un tuyau a 10, on est quitte
Bravo amigo

Norm….
treize piastre et demi… S’tun faitte….s’pas chère…. mais a s’en méfier….:eek:
L’expérience en outillage m’a prouvé t’en à TOUJOURS pour ton cash
Pas chère = trop souvent -> scrapp + perte de temps…. Pi temps = cash !!
L’à tu essayer…s’a tuff tu un boutte…comparable disons a Onsrud ou Leitz ?

Wouoo mon chum, ca rentre pas dans les bon tuyau çâ !! = +/- 0.01$ :D
S’lut ;)

Bob cé fai pou l'métal cé tof essaye pas :)

I am having problems with my tool bit suppliers. To many non technical sales people!
Gerald and other slot drillers. Is this the correct Diameter 6mm bit to use?

Attachment 9884

Johan, that looks okay.

For a moment I thought they have send me the wrong thing.:o
Thanks

I now see HSS in red on top of the table....that is not a good idea, they get blunt quickly. (High Speed Steel). Better to get "carbide" cutters made from solid tungsten carbide. They look the same.

I was just going to ask what he wants to cut with it. I bought some and they went dull within 2 minutes.

Johan, you might consider getting it from Cape town from Power tool repairs (021-448-2620) ask them for a catalogue about R60 then you can see what you buy.It might be far from you but so far they are the best and just get postnet to pick it up for you takes 2 days at the most.

Thanks Hennie, I will check it out.
It will have to be from a supplier like that in the future or Somta as Jan suggested.

Thanks Hennie, I will check it out.
It will have to be from a supplier like that in the future or Somta as Jan suggested.

Ok ok we get the message ...:D

Johan, the guys with the widest range of stockists is Toolquip. Call their Durban number to see if they have a stockist near you.

Does someone has experience with insert tools like Her-Saf ? Would they be ok for particleboard and MDF cutting every day? Inserts seem to be relatively cheap but dont know how much they last.

also while searching the net I found these
http://www.bamcarbide.com/1x2o1cutdi1l.html
What is the experience inserts vs. bits like those?

Inserts can also be found to be of solide carbide tungsten, also what worries me is would the chinese 2.2kW spindle I bought be powerfull enough to plunge and work with 12mm insert cutter.

Thanks for help!

Just to show you guys what type of sales people I have to deal with in Zululand.
Attachment 9917

The collet on the right is my existing imperial 1/4" to 1/2".
I ordered a metric one but received another imperial one.
I send it back and then this strange creature arrives. (on the left)
It looks like the imperial collet that they have heat up and pressed around a 6mm shank.
Well, what can I say, it still doesn't work because now the outside just falls out of the Makita chuck.
I can't wait until tommorow (Monday) morning. Man..oh..man!