7 replies to this topic

[Ethel]

Is there are particular size of spot weld drill bit I should be buying? I'm thinking about a flip front at the moment and there are obviously some welds that need to be removed.

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You can get purpose made spot weld cutters, like a mini hole saw that cuts round the weld. If you're junking the removed panels, use a grinder or saw to cut alongside the seam then roll the remaining strip off with a chunky pair of pliers a bit like a corned beef tin.

[mighty mini jack]

Is there are particular size of spot weld drill bit I should be buying? I'm thinking about a flip front at the moment and there are obviously some welds that need to be removed.

.

You can get purpose made spot weld cutters, like a mini hole saw that cuts round the weld. If you're junking the removed panels, use a grinder or saw to cut alongside the seam then roll the remaining strip off with a chunky pair of pliers a bit like a corned beef tin.

I'd advise not to buy the mini hole say one, absoltuely awful to be honest.

never attually stay where you want them to and the teeth snap off.

[james105]

Screw fix spot weld drills are the ones i use, and they seem to do a fantastic job!

Link:

http://www.screwfix....earch=spot weld

James

[Ethel]

Is there are particular size of spot weld drill bit I should be buying? I'm thinking about a flip front at the moment and there are obviously some welds that need to be removed.

.

You can get purpose made spot weld cutters, like a mini hole saw that cuts round the weld. If you're junking the removed panels, use a grinder or saw to cut alongside the seam then roll the remaining strip off with a chunky pair of pliers a bit like a corned beef tin.

I'd advise not to buy the mini hole say one, absoltuely awful to be honest.

never attually stay where you want them to and the teeth snap off.

I think they're worth the effort if you're retaining at least one of the panels. I agree they're not the slickest of tools, you need to keep the cuting speed right down and centre punch or even drill a little pilot hole, if it's less than totally flat. I'd be tempted to make a guide out of some moles.

[nomininolife]

8mm or 5/16



David

[exuptoy]

I have been in the garage this afternoon with one of THESE
 drill.jpg   1.93K   9 downloads
I bought 2 off ebay for less than a tenner dlivered and they are superb only leaving a dimple and a bit of excess metal which can be flushed off with a linishing disc on a grinder for a perfect seam finish. Deffinately worth the cost.