spot weld bit size

[502tripower]

Originally Posted by Captainfab

I tried this today with an old 3/8 bit I had and it worked pretty well. One small problem I had was getting the center point so that it would actually cut. I guess I need to work on that a little more.....have any siggestions?
Thanks for posting this

Cap, When I ground the center point I would make it just long enough to center the bit. Also I would not make it an exact point leaving a bit of the drill bit. It just takes a bit of playing to get it right and as you well know some bits are better than others. The forstner bits are used for wood so they are ground to a point. Hope this helps. Good Luck

[Captainfab]

Originally Posted by 502tripower

Cap, When I ground the center point I would make it just long enough to center the bit. Also I would not make it an exact point leaving a bit of the drill bit. It just takes a bit of playing to get it right and as you well know some bits are better than others. The forstner bits are used for wood so they are ground to a point. Hope this helps. Good Luck

Yeah I did leave a little bit of a kid of spade shape to it, but I still had to lean on it pretty good to get it to cut. Like you said, it takes a little bit of playing to get it just right. Of course my eyesight isn't the best anymore either.....really need to see about some specs.