Carbide indexable Spot drills

Dave K · Jan 29, 2009

The "regrind" thread prompted me to post a question that I've wanted to post for a while now, and keep forgetting.
Has anyone ever tried using these carbide indexable spot drills? I've only seen a few companies that make them. I think they are Everede, OSG, and some off brand company.

With the price of standard spots and the fact that nobody seems to be decent at regrinding them, I've often wondered of an indexable was a decent way to go. They may vibrate a bit because they are only one flute, but if they work decent, I would think a person could spot your holes pretty fast compared to high speed drills. Anyone?

Bottom of the page here, shows a video of this in action. Looks like a smooth cutting tool, but I'm skeptical
http://www.everede.net/

pking1793 · Jan 29, 2009

spot drill

I have been using the osg brand it works very well, we use it to spot,chamfer holes, and machine chamfers on parts,,,,Pete

exkenna · Jan 29, 2009

Oh man I just saw a new mfg'r for these a couple weeks ago.
I'll see if I can backtrack and get the info for you.

Dave K · Jan 29, 2009

Good to hear, pking. How long do inserts last on those things. Is it fairly cost effective?

Thanks Exkenna, I'll appreciate any info you can get.

exkenna · Jan 29, 2009

This is interesting:
http://www.youtube.com/watch?v=wO65mdsSC3Y

Made by Mircona in Sweden.
Would it kill ya to go metric?

I'll see if I can get it into the states.

Dave K · Jan 29, 2009

Kill me? No. PITA? Yes. Well, maybe not. I'd have to buy a metric collet I guess to run it in my centers, and metric sleeves to run it in my lathes. Geez, seems like a lot of stuff to buy just to use that spot drill. Doesn't everede make them in english?

exkenna · Jan 29, 2009

Let me check with a few more sources.

exkenna · Jan 29, 2009

I just picked up the Ingersoll line.

I think they have something you will like:
http://pdf.directindustry.com/pdf/ingersoll-cutting-tools/hole-making-catalog/17869-11078-_10.html

Check out the nifty engraving tool, .010 radius on the tip and designed for 100 inches per minute:
http://pdf.directindustry.com/pdf/ingersoll-cutting-tools/hole-making-catalog/17869-11078-_11.html

Dave K · Jan 29, 2009

Yeah, I've seen that engraving tool in a catalogue that I have. Pretty cool, but Ingersoll seems pretty expensive. On the other hand, it's pretty good quality.

Can you give me a price on the second one from the top with a pak of 10 inserts?

exkenna · Jan 29, 2009

OK, let me call it in in the morning. My pricing structure is in route, don't have it in front of me right now.
See you guys tomorrow... yawn. :cheers:

Mark McGrath · Jan 29, 2009

I`ve been using the one from advanced carbide as linked to in post number seven in this thread.
http://www.practicalmachinist.com/vb/showthread.php?t=167815&highlight=chamfer

Dave K · Jan 29, 2009

Mark,

So, what's your consensus? Is it worth it? Do you get a lot of life out of it before it needs inserts?

Kris P · Jan 29, 2009

Im sort of interested in these as well. I've got a job that spots a bunch of holes and chamfers to break edges all around some blocks. My only concern is they seem like they would be kind of hard on the spindle on a smaller machine w/one flute and a not so sharp edge as on most inserts.

Dave K · Jan 29, 2009

Kris,
That's my concern too. I'd like to try it, but if I don't like it, it's a lot of money wasted.

Mike Ortega · Jan 29, 2009

SpotIN

Exkenna

I'm very interested in the 140deg version of YB1200006S5RO1 SpotIN series, pg 12. How much do these run?

Mark McGrath · Jan 29, 2009

I bought that tool of Ebay,brand new for about $17 with four tips.It`s a 20mm spot drill.I had to tell them to use it instead of 12mm x 45 deg HSS chamfering cutters.Asked just now about tip life and was told it has done over 1000 1/16" x 45 chamfers on 5/16" holes and spot drilled about 800 holes on two tips.Not very scientific and I don`t suppose it`s crossed the operators mind that a tip that is past spot drilling can still chamfer and vice versa.
I also told someone to order 10 tips for it from our regular guy who comes in every week.That`s not been done either so I don`t know what they cost.
Sorry to be so vague.Will post the model number tomorrow.

masome · Jan 29, 2009

I know this isn't indexable, and I haven't tried them yet, but I just got an email from Maritool advertising his new spot drills. Prices seem to be pretty good.

fmari --MariTool- · Jan 29, 2009

I am currently stocking Chamfer Mills. They are not quite the same as spot drills. Since they are 4 flute carbide the tip is very fragile and does not have too much chip room. They can be used for spotting in soft materials but in alloy steel if you try to spot the tip will chip out. Shortly I plan on stocking spotting drills.

Curt B · Jan 29, 2009

Mark McGrath said:
I`ve been using the one from advanced carbide as linked to in post number seven in this thread.
http://www.practicalmachinist.com/vb/showthread.php?t=167815&highlight=chamfer

I'm glad somebody made use of my suggestion. I found the tip much more durable than the Ingersoll we used previously. We are now spotting and then circle milling the chamfer before drilling on tapped holes since we now have something that holds up.

PixMan · Jan 29, 2009

I've used these for a few years now, and really like the choices of angle and (most importantly) web thickness at the tip:

http://www.genswiss.com/spotdrills.htm

Genevieve Swiss has been a great vendor for me too.

Carbide indexable Spot drills

Diamond

Plastic

Stainless

Diamond

Stainless

Diamond

Stainless

Stainless

Diamond

Stainless

Diamond

Diamond

Hot Rolled

Diamond

Aluminum

Diamond

Hot Rolled

Titanium

Cast Iron

Diamond

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