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obscurity |
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Member ![]() ![]() Group: Members Posts: 411 Joined: 24-February 06 From: Atlanta ,GA Member No.: 5,628 Region Association: South East States ![]() |
I have been drilling spot welds as I work on my car and it occured to me that there may be a better way (or maybe I am being to picky). I am curious what everyone else uses.
I have been using a spot weld cutter. It looks like a short drill bit with a pilot point and little cutters along the edge. It will cut through the top layer or steel but not the back layer (usually). They will cut about 10 welds before being hoplessly dull. When I was buying them at $5/bit it was fine but that company went out of business and the ones I find now are $25/bit. Are these the right tools to use or should I be just using a drill bit allthe way through the weld. Any help or tool suggestions would be appreciated. (IMG:style_emoticons/default/smile.gif) Thanks, John W. |
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Richard Casto |
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#2
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Blue Sky Motorsports, LLC ![]() ![]() ![]() Group: Members Posts: 1,465 Joined: 2-August 05 From: Durham, NC Member No.: 4,523 Region Association: South East States ![]() |
When drilling, I use a 3/8" Blair Rotabroach. If you do not use cutting oil they will dull within a handful of uses. But if you use cutting oil they last quite a long time.
As much as I love the Rotabroach, I also grind down the spot weld and pop apart and sometimes just drill straight through using a regular drill. It just depends upon the situation. |
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