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Looking for a new spot weld cutter as the one I have is probably too big. The spot welds on the quarter I need to remove appear to be about 1/4" in diameter. The one I have is 1/2" so thought was to order 3/8" as that seems to be the smallest I can find.
Any suggestions on brand or any other suggestions?
Spot Weld Cutters
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Joined: Fri Apr 10, 2015 3:51 pm Country: USA |
 Posted: Wed Jan 13, 2016 11:55 am
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Posts: 9889
Joined: Fri Oct 20, 2006 12:40 pm Location: ARIZONA |
Posted: Wed Jan 13, 2016 3:13 pm
Blair make a 5/16" cutter #11098
The trick to these is to start at low RPMs until you have a complete circle being cut and then you can increase the speed and pressure when drilling. If you spin them too fast at the start the welds will break the cutter teeth. Most cutters are designed to go around the weld and not through it. Carbide drills work but you have to maintain control or you can go too deep real fast. 1968 Coronet R/T
ACTS 16:31 |
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Posts: 101
Joined: Fri Apr 10, 2015 3:51 pm Country: USA |
Posted: Wed Jan 13, 2016 4:30 pm
Thanks!
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Fully Engaged
Posts: 101
Joined: Fri Apr 10, 2015 3:51 pm Country: USA |
Posted: Wed Jan 13, 2016 4:32 pm
I also read to drill a 1/16 pilot hole through the center of the weld to keep the bit from wandering?
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Posts: 9889
Joined: Fri Oct 20, 2006 12:40 pm Location: ARIZONA |
Posted: Wed Jan 13, 2016 6:56 pm
I didn't find it necessary except on a couple of nasty welds.
1968 Coronet R/T
ACTS 16:31 |
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Posted: Wed Jan 13, 2016 8:26 pm
I always use a punch to put a little indention in the middle of the spot weld then start the bit. No wobbling that way.
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Posts: 29
Joined: Wed Jan 16, 2013 1:02 pm Location: Naples Country: Italy |
Posted: Tue Oct 04, 2016 11:16 pm
I use these as well. Have done dozens on my 72 Alfa Romeo. Several hundred more to go! Scott 72 Alfa Romeo GT 1300, Amaranth Red/Tan
66 Fairlane GT Convt, 428, 4 sp, Black/Black/Red 68 GTO Convt, Owner Built 455/TH400, Nordic Blue/White/Parchment 71 Javelin Road Race Project, Owner Built 401, T-10, 9" |
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Posts: 496
Joined: Sun Dec 02, 2012 11:33 pm Country: USA |
Posted: Wed Oct 05, 2016 8:34 pm
For many spotweld removals I use a Dynabrade Dynafile. Rips through them quickly and the tool has countless other uses.
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