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I'm gonna need to extract, rate these drill bits if you can.... #1013558 11/23/10 08:52 PM
Joined: Mar 2010
Posts: 48
Rafterman191 Offline OP
Getting the Wheeling Fever
Menards has a set of Vermont LH drill bits as seen here Vermont LH bits. There is a Lowe's in town as well but I couldn't find anything on their website that looked worth a damn. There are these on Ebay Northern Cobalt LH bits or is there something else you know of? I am afraid to use anything Harbor Freight as I am drilling out the crankshaft pulley bolt and don't want to end up breaking something off in there.


'91 Montero RS
'96 Sidekick JLX
'78 Wifey XXX

let me tell you of the days of high adventure...
Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: Rafterman191] #1013559 11/23/10 10:13 PM
Joined: Jan 2000
Posts: 16,227
off-roader Offline
Web Wheeler
*****
I prefer carbide bits if you can find them although I'm not sure if they would be good for your needs. I'm sure someone else who's done that can chime in. <img src="/forums/images/graemlins/kewl.gif" alt="" />


Off Roader
98 Montero with the Winter Package
89 Montero minty clean and reserved for overlanding trips or Cars and Coffee events
96SR (3.15:1 xcase, 35's) gone to the rust gods
96SR Build Up Thread
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Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: off-roader] #1013560 11/24/10 12:46 AM
Joined: Jan 2010
Posts: 81
M
mineitnow Offline
Getting the Wheeling Fever
I'd say any quality bit would be fine. Just use a good drill that goes at a slower speed...and have a buddy spraying oil frequently...


96 F250 4x4 Powerstroke
92 F150 4x4 Cummins 4BT Turbodiesel
90 Mitsubishi Mighty Max 4x4 3.0
Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: Rafterman191] #1013561 11/24/10 04:02 AM
Joined: May 2007
Posts: 4,628
hazy_daze Offline
Roll Me Over
*****
The Vermont American's are what I have and have used with success.


Fasteddy's advice is occasionally sound...
Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: hazy_daze] #1013562 11/24/10 08:28 AM
Joined: Sep 2002
Posts: 3,634
bretwalda Offline
Roll Me Over
Home Depot has some bits from Ridgid called Cryo Cobalt bits. They are silver in color. After losing an edge quickly drilling out a couple of the 50+ spot welds on my T&C's strut tower fix with the regular cobalt bits - this bit buzzed through them incredibly. The only catch is they are a lot more brittle - so keep your drill line straight.

No LH as far as I know - never extracted that way.


concreteprinter.com
Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: hazy_daze] #1013563 11/24/10 04:26 PM
Joined: Mar 2010
Posts: 48
Rafterman191 Offline OP
Getting the Wheeling Fever
I think I am going to go with the set of Vermonts. For the price ($32) they gotta be pretty good. Right <img src="/forums/images/graemlins/smile.gif" alt="" />?


'91 Montero RS
'96 Sidekick JLX
'78 Wifey XXX

let me tell you of the days of high adventure...
Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: Rafterman191] #1013564 11/24/10 08:58 PM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
Should work fine - if they don't, use a magic square <img src="/forums/images/graemlins/lol.gif" alt="" />


Not responsible for advice not taken...
Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: bretwalda] #1013565 11/25/10 01:11 AM
Joined: May 2006
Posts: 524
B
Bernoulli Offline
Rock Warrior
My experience with cobalt bits is they are better for drilling very hard substances (stainless, hardened steel, etc.). For mild steel, use lots of coolant and a high RPM - probably about double what one would normally use with high-speed steel bits.


89 3L V6 5spd SWB, Aisin Manual Hubs, 2 (suspension) seater Raider in Wheeler, OR
Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: Bernoulli] #1013566 11/25/10 03:19 AM
Joined: Jan 2000
Posts: 16,227
off-roader Offline
Web Wheeler
*****
Quote
My experience with cobalt bits is they are better for drilling very hard substances (stainless, hardened steel, etc.). For mild steel, use lots of coolant and a high RPM - probably about double what one would normally use with high-speed steel bits.


That said, I would think that bolt would be hardened steel but perhaps someone can shed more light here?

Re: I'm gonna need to extract, rate these drill bits if you can.... [Re: Rafterman191] #1013567 11/25/10 10:57 AM
Joined: Oct 2010
Posts: 3
M
Mo95sr Offline
Need a Spot
Ok, I just got done doin the same thing on my 95SR. I bought the set of crio bits from home depot, these might be good for other softer metals but for some reason are JUNK for the type of metal in that crank bolt. From there i went through two more bits of simular quality with minimal success. I finaly broke down and called my local specialty tool suply store McFadden dale's. They sold me an excelent quality S&D HD Black and Gold bit that went through it like a hot knife through butter. I was amazed to find that this bit was Just a high speed steel bit, however it was a very well manufacturered tool. The bit did cost me $35 but I would have saved the $100 i spent on all those other bits had i started with this one in the first place. Yet another leson learned, sometimes the manufacturer is more important than the materials used. And when it comes to tools ALWAYS buy American made! Try to find a specialty tool store in your area like Ace, Fasteners, Fastenal, Mcfadden Dales, ect. And make sure you get the right tap, I went through the same mess with that issue as well. The tap i used was about 50 bucks, but was well worth it and once again a nothing special U.S. made tool did the job with ease when all the overseas "special" tools made from the "best" materials just broke or striped. Good luck bro, and dont hesitate to pm me if things get bad.

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