spot weld cutter

[jm599]

what are you guys using to drill out spot welds?

I 've used the small hole saw looking ones before but they broke a lot and weren't cheap. I have heard of using special bits with shallow angle? and I see snap on sells a tool specially for this.

 

[Waorani]

I tried these thinking they might be better than the cheapy cutters but they didn't work worth a crap.

http://www.eastwoodco.com/jump.jsp?itemID=1160&itemType=PRODUCT

I actually ended up using a carbide burr in a die grinder with greater success.

 

[FL cruiser]

I too got tired of the cost of the special cutters bits.
Went back to using drill bits.
not so bad if you tap the weld center with a center punch first.

 

[incogrhino]

I use the hole saw type you mentioned before with no problems at all.Center punch the weld and have at it.How are you breaking em?What part breaks?

 

[jm599]

breaking the teeth off the outside of the hole cutter edge. not much of a problem where the weld is flat but when the spotweld is in a concave area like rain gutters not doing so well.
going slower and more careful with a new replacement and now have half the roof done on 55 project.
thanks for the advice

 

[Nomis]

I have had good success with the Dewalt "Pilot Point" bits with good results:

http://www.lowes.com/lowes/lkn?action=productDetail&productId=173160-000000070-DW1956&lpage=none

 

[caz]

I second the "pilot point"

 

[jm599]

exactly what I was looking for. I think buckroseau over on FJ45 uses something similar but couldn't find it on his giant posting

 

[Nomis]

exactly what I was looking for. I think buckroseau over on FJ45 uses something similar but couldn't find it on his giant posting

That's where I got the idea from as well.

 

[aandy767]

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=95343

Works fine, might want a pilot hole. Broke the bit part and use a nail instead, I need a pilot hole of course.

 

[denis]

You can grind a regular drill bit into a shallow angle spot welder bit, it it takes a bit of practice