Getting ready to do a lot of spotweld cutting and I'd like some recommendations on what brand of spotweld cutter to buy. Gimme your suggestions guys!
+1 for Blair, I recommend kit #11096 because it has the arbor plus an extra pilot ans 3 extra cutters.
1/4" bulletpoint drill bit, most cutters leave to big of a hole for my liking. If you carefully drill em out you can pop the panels free of each other.
I've found that if one of the panels is going to be destroyed/replaced, and the other is to be saved, then cut as much of the junk one away as possible to get better access to the seam, and then split the seam with a cold chisel and hammer. It's a lot faster than a spotweld cutter, and you have less dressing to do on the seam with a grinder when you're done. -Brad
Blair cutter $20, Harbor Freight cutter $4.95. The Harbor Freight works just as good for me! I did break the pilot on the HF one and used the Blair holder with the HF cutter because the Blair cutter broke. John
I have the Blair/Jancy style that I bought from Snap-on and love it. I'm not sure which of the 2 make them for Snap-on, but the kit werkz great
I just recently bought a Blair, been drilling and/or cold chiselling for years beforehand. The Blair is my new favorite tool! (until the next one)
I use a 1/4 " round carbide burr in a die grinder to grind out the weld & split the panels w/ air chisel.
We just had a discussion about this on the czar board.. seems like RotaBroach was the way to go... http://www.chromeczars.com/board/showthread.php?t=5114&highlight=spot+weld
I just center punch and drill all the way through the spot weld with an 1/8 inch bit, and then measure the diameter of the spot weld and use a drill bit ground real shallow to take the top sheet off. That way when I weld I get to fill the 1/8 inch hole in the main metal and finish out the outer level. A little grinding, done and strong.
the shop im at gives us these(bit more than the blairs but last longer and dont break as often).... http://www.matcotools.com/Catalog/toolcatalog.jsp?cattype=T&cat=2485&select=&page=2 if you dont care about the panel your cutting off just use a cut off wheel to grind the welds down
i needed a spotweld cutter not long ago ,the paint store said the blair tool was back ordered so i used harbor tool cutters.i bought 2 cutters and have cut at least 100 spots with the first cutter,havent needed the second one yet. these cutters work pretty good for 4.95 each. i will most likely still get the blair rota broach tho.
Here's another way. I like this method when I want a hole to plug-weld the parts back together. It's fast and clean. I drill a hole in a small piece of 1/4 inch plywood for a pattern and use my plasma to burn the spotweld out. Here I'm plug-welding the new gutter I fabbed from the inside thru the holes made by the plasma. Might be of some help if you have plasma.
x2 on spitznagel. i used a snap-on model for a few years, but when i broke the centering pin they had discontinued that exact one so i couldn't get a replacement pin. got a spitznagel from a friend and haven't let him have it back yet. i also agree with brad54. i use a thick putty knife once i can get between the two panels and hammer it through the welds sideways. (i sharpen one side) good luck.
I Like the RotoBroach Kit. I have yet to replace it and have had it 3 years. Plus if you buy the kit they also drill very nice round holes. I recommend looking around if you are going to buy one. My experience is that they are all made by the same company so find the cheapest tool company or your favorite dealer. Link to the matco variety. http://www.matcotools.com/Catalog/toolcatalog.jsp?cattype=T&cat=2485&select=&page=1
Here are some.. i try to pick the ones made in USA.. like wivco etc.. but sometimes you have to go with cost. http://www.autobodytoolmart.com/sea...spot weld&refine=y&Category=Spot+Weld+Cutters
I picked up a couple at Harber frieght, wasent too sure about them but what tha hell they were cheap and they worked great.
I used Blair for years.I borrowed a spitznagel from a co-worker and it was great,but way too much money for me. I have used the H F cutters with great results.I think they were on sale for $2.95 ea. so I bought several. They last a long time if you dont abuse them.I also bent a pilot,and screwed the H F cutter on a blair pilot.
Another + for the Blair. Use lube on the cutter and they last a long time. Have used center puches and drills in a pinch. With a panel splitter I made from a knife-edged dull file.