spot weld removal

[what2do]

Never a pleasant or easy job but I was wondering what methods other people use. Myself, I'll drill them out with a quality 6mm bit and then part the 2 skins with a chisel. Yet to purchase the core style bit which is labelled as a removal tool - they look as though they'd be slow in my opinions, what do others think? Cheers.

[KINGPRAWN]

There is a special little tool calle a .. Zip cutter.. Sykes picavant used to do ... Expect others do them, it's a little drill with teeth!!!!

[HarryMann]

What2

The correct and incredibly efficacious tool is a cobalt spot weld removal bit, available in 6mm and 8mm as well as long and short versions.
Mine's 4 years old and still A OK, I even use them for drilling panels for spotting onto with the MIG

Perhaps same as what you're calling a core drill...

Will see if I can find a link ...

[Plasticman]

these are the ones i use http://www.workshopsuppliessales.co.uk/ ... ack-p24732" onclick="window.open(this.href);return false;
there are loads out there ,many are described as quality etc etc . lets have less of the vacuous glib sales patter and go for a good brand that said i do go through a few also use the 6mm as this has lots of uses and of course makes a sm,aller hole,
one thing these bits in common with most are that they dont like to slip, that is they need to be cutting rather than spinning on the surface so maybe a slower speed and keep pressure on
mm
oh and im not a lover of the other type of bit,personal choice / experience

[HarryMann]

Yes they look like the ones I have used for years... 8% Co HSCO.

Yes also to the 6mm mostly used although link points at 8mm

As with all metal cutting, there is a correct feed and surface speed so pressure to get it cutting keeps speed down or use speed control trigger.

A simple centre punch /centre pop in middle of each spot helps a lot. Accurate centreing reduces need for chiselling and distortion. PPPPPP!

[what2do]

Thanks peeps, you seem to regard them highly and praise them sufficiently, I'll order one this evening.

Just about to post about painting new panels, please comment. Cheers.

[Plasticman]

donjt forget,that link was for 2 so about 6 notes each
mm