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Tool Talk Discussion Forum

Die Grinder question

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Fawteen

01-03-2005 14:41:39




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I got a deal on a 1/4" collet mini die grinder I couldn't pass up. Now I gotta buy the bits to go with it. Feller at work has a set of $nap-on carbide bits that are the cat's meow, but they're outta my price range. So, some questions:

1. What are they called? I think they're called "end mills", but a little preliminary surfing using that phrase hasn't turned up what I want.

2. What should I have to pay for a small set? I'd like at least a straight, a cone and a ball.

3. Where can I get them?

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Jim@concordfarms

01-04-2005 13:27:58




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
F14, I don't think I'd use a real end mill in a die grinder. One time the boss went off and left me in charge of the shop while he went on vacation. Started a new apprentice on the same day. Not a good idea. While I had my back turned, he chucked a 3/8" 2-flute single-end mill in the chuck on the drill press. Result: one ruined drill chuck, one broken end mill, one scared apprentice, and one pi**ed off temp. foreman. Conclusion. End mills are designed to be used only in super rigid set-ups. i.e. the end mill in an R8 collet and the work in a milling vise on a milling machine. Lots of difference between an end mill and a burr. Jim.

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the tractor vet

01-04-2005 11:59:34




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
I bought a 4 pcs. set from snap off and i am thinking that it was around a 100 bucks and i have had them now for 10-12 years but i am the only one that uses that set .



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Davis In SC

01-04-2005 18:37:52




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 Re: Die Grinder question in reply to the tractor vet, 01-04-2005 11:59:34  
Key word is "Only You"... I hate to loan tools, they come back destroyed, if they ever come back at all... I have learned that it is cheaper to take tools & do job for free, rather than lend them to friends. Regards, Davis



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MarkB_MI

01-04-2005 03:31:13




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
Here in Michigan we get our carbide burrs at Production Tool Supply. They have an on-line store, which I haven't tried; always went to their local store.



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ahhhh, die grinders

01-03-2005 22:03:09




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
One of my favorite tools. I use one as a tool post grinder on my lathe, for polishing the in and exhaust ports on heads and suck to smothe out air flow. Once you start using it you're gonna end up with a galizzilion stones, rotory files and suck. You'll love it.

KraigWY



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Fawteen

01-04-2005 04:23:52




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 Re: Die Grinder question in reply to ahhhh, die grinders, 01-03-2005 22:03:09  
Already hooked. Got one at work, handier than a pocket on a shirt. Had a $750 pilot-controlled hydraulic spool valve get nicked by a piece of shrapnel in the system (long story...) whipped out the die grinder, a rag wheel and some jeweler's rouge and spent about an hour polishing and fitting and managed to save it. Boss was tickled.

Them cutoff wheels is some slick too...



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Mike Burdick

01-03-2005 19:47:16




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
For burs ask these companies to send you a free catalog or use their web sites:

Enco:

Link

MSC:

Link

Travers:

Link

If you use the websites, do a search for "carbide burrs". They also make them in HSS.



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Fawteen - Woooo!

01-04-2005 04:20:49




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 Re: Die Grinder question in reply to Mike Burdick, 01-03-2005 19:47:16  
Thanks, I'll bookmark all of those places. Sure hope the wife finds a job soon, my toy budget needs a cash infusion...";^)



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BFO

01-03-2005 18:24:02




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
I usually by my carbide burrs at Grangers, or Doall, but every once in a while Princess Auto has some on sale



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CodyNETex

01-03-2005 17:45:13




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
We call them rotary files ..... .



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Gerald J.

01-03-2005 16:35:09




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
I don't like cutting with burrs in the die grinder. They cut out little super sharp splinters that get all over everything. They hurt.

I use grind stones with my die grinder and thin 3" diameter cutoff wheels. With its speed it works very well with those and I can make cuts without damaging adjacent parts. Be sure the stones and cutoff wheels are rated for the unloaded speed of the die grinder, else they will fly apart. Let each one run a minute positioned so it won't put pieces into your body each time you install it and after its been dropped.

Gerald J.

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MAC,IL

01-03-2005 15:02:03




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
"End mills" are what we use with a milling machine. Look below and you can get an idea of what you might need and the price. Agree, carbide are the best, but you can still get the job done with regular steel.
http://www.discount-tools.com/rfilesindexmain1.htm



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John/FL

01-03-2005 17:43:20




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 Re: Discount-Tools.com in reply to MAC,IL, 01-03-2005 15:02:03  
Discount-Tools.com ... I had a problem with this company, about a month ago. I placed a $108.00 order for end mills and such ... the company only shipped two of the six items I ordered. This amounted to approximately $26.00 in merchandise. Discount-Tools.com billed my credit card $118.00 with shipping, and has never responded to either of my two emails. I was forced to submit a grievance letter to my credit card company. Buyer beware ... John/FL

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Fawteen

01-03-2005 18:12:29




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 Re: Discount-Tools.com in reply to John/FL, 01-03-2005 17:43:20  
Ouch!

Thanks for the heads-up. I'll look elsewhere...



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Fawteen - Thanks!

01-03-2005 15:31:44




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 Re: Die Grinder question in reply to MAC,IL, 01-03-2005 15:02:03  
I'm beginning to wonder if my cow-irker mighta exaggerated a mite when he told me what he paid for his set. Then again, they ARE $nap-on... :^)

Anyway, I call their prices for carbide burrs pretty reasonable. I can put together a set that'll cover what I need to do for around $50. I can go there...



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Davis In SC

01-03-2005 14:53:18




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 Re: Die Grinder question in reply to Fawteen, 01-03-2005 14:41:39  
Cutting tools for the die grinder are called Burrs.. (Sometimes Burs) Good Carbide burrs are expensive, steel ones are less ,but do not last as long, nor cut as well. For light grinding, I like to use the diamond grit ones. When the Homier tool sale comes to town, I buy a lot of these diamond burrs,in 1/8 & 1/4 sizes. They cost about a tenth of price at the industrial supply, & surprisingly, quality is good.

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Fawteen - Ah...

01-03-2005 14:59:03




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 Re: Die Grinder question in reply to Davis In SC, 01-03-2005 14:53:18  
Burrs. That woulda been my second choice...";^)

Thanks, I'll go surf around. Depending on HOW precious they are, I may get a basic set of carbides, then fill it out with cheapo diamond dust cutters.



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Crem

01-05-2005 12:59:30




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 Re: Die Grinder question in reply to Fawteen - Ah..., 01-03-2005 14:59:03  
Burr, that is what we screwed on a bolt when I was a kid. :o)))



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Ol Chief

01-03-2005 17:30:04




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 Re: Die Grinder question in reply to Fawteen - Ah..., 01-03-2005 14:59:03  
I have not purchased any new burrs in a long time.However years ago I had several that were dull or chipped and at that time I was able to return them to the mfg. to be reground for a reasonable fee. You might check to see if this is an option. My initial set was purchased from Doussan in New Orleans.



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