slimwynn

just wandering if any one new what size spot weld drill i would need for drilling out the spot welds on rear chassie rails on an escort mk4 thanks.

Chaz888

I think spot cutter come in sizes 5-8 mm would check my cutters but im not at home

Chaz888

just check the indent size then add 2mm that should do it

tabetha

I would say 6-8mm
tabetha

Ginge !

just buy a spot weld drill bit, they are one size on the cars at work im sure as its the only size we keep in stock, its not like a normal drill bit either its better and lasts for ages

Chaz888

just though the bits have a guide pin drill each spot center with a 2.5-3mm through hole cos the bits tend to move about like hell! each spot hardens the serounding steel making it more skiddy

vaughant

iTrader: (1)

If you get the ones from machine mart that look like a mini cutter they have a spring loaded pin on them that you just centre punch the weld then they seem to hold on a lot better than the standard 8mm spot drills.

Their a great bit of kit those machine mart ones as the cut around the weld and leave a little bit of the weld behind,so it's pips to weld the new panels back in without a spot welder,gives you a nice area to bite too.