Spot weld drill

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Spot weld drill

Postby StPro » Thu Aug 24, 2017 9:28 am

Does anyone have any experience with Spot weld drill Blair or Dentfix Pro or Con I am trying to justify buying one since I do so much spot weld removal and I hate doing it with a hand drill and spot weld cutter. I just did all the welds on a replacement fire wall it reminded me how time consuming it is and how much I dislike it. Now I have to go and do all the same welds on the car.
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Re: Spot weld drill

Postby Lou's Comet » Thu Aug 24, 2017 1:15 pm

I have been using the Blair cutter for years.

http://shop.blairequipment.com/ProductD ... gIsvPD_BwE

Tried a few other ones over the years..even a expensive snap on one. Always preferred and had the best luck with the Blair. Plus you can buy the cutters and pilots separate once you have the arbor.

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Re: Spot weld drill

Postby Comechero65 » Thu Aug 24, 2017 4:09 pm

Have never seen the need to get the special spot weld cutting bits. I just alter the end of a standard drill bit so it has a center point and two outer corners projecting forward. I do that right on the grinder wheel. Has worked well for me. If it gets worn or chipped I just regrind it to the same shape. One bit lasts a long time. In fact never had to make more than one.
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Re: Spot weld drill

Postby vicegrip » Fri Aug 25, 2017 8:12 am

Blair is the best. Operate at slow speed as heat dulls the cutter faster. To me,the pilot is a joke as it likes to walk around and end up missing part of the weld so I drill a 1/8 hole first.
Ron... you can just buy the drill bit you speak of from the Dewalt drill rack. They do work good,any size you want.
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Re: Spot weld drill

Postby StPro » Fri Aug 25, 2017 10:22 am

I was asking if any one has used the actual Blair spot weld drill.
https://www.nationaltoolwarehouse.com/E ... gKSQ_D_BwE
I work on this kind of stuff all the time I am looking to speed up the process. I use cut down drill bits most of the time. drilling a pilot for the blair hole saws is a must.
Only use the brakes to stop and get gas.
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Re: Spot weld drill

Postby Comechero65 » Fri Aug 25, 2017 11:23 am

vicegrip wrote:Blair is the best. Operate at slow speed as heat dulls the cutter faster. To me,the pilot is a joke as it likes to walk around and end up missing part of the weld so I drill a 1/8 hole first.
Ron... you can just buy the drill bit you speak of from the Dewalt drill rack. They do work good,any size you want.

I have purchased many drill bits over the years but have never seen any bits ground the way I do mine. Plus I probably couldn't resharpen it if I had one of those as they probably would need a special sharpening jig. But at this point in my life I'm not likely to need another since I won't be doing any major restores. Haven't worn out the one i've been using yet.
Ron
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Re: Spot weld drill

Postby vicegrip » Sat Aug 26, 2017 9:29 am

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Re: Spot weld drill

Postby Comechero65 » Sat Aug 26, 2017 2:23 pm

Mine are sort of like that except I bring my corners out forward to more of a point. And I can do that right on the grinding wheel. Has worked very well for me. I knew about those bits but never tried one.
Ron
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