Graham Posted September 6, 2018 Report Share Posted September 6, 2018 Been looking to purchase an air chisel, but I notice that some are listed as having 'medium' or 'long' stroke can anybody advise what would be best for panel removal Quote Link to post Share on other sites
TR NIALL Posted September 6, 2018 Report Share Posted September 6, 2018 Hi Graham what exactly do you need it for as they can do Fair Damage in the wrong hands. Quote Link to post Share on other sites
Lebro Posted September 6, 2018 Report Share Posted September 6, 2018 They are very good for removing mortar from second hand bricks ! Bob. Quote Link to post Share on other sites
Graham Posted September 6, 2018 Author Report Share Posted September 6, 2018 Hi Graham what exactly do you need it for as they can do Fair Damage in the wrong hands. I have to unpick some poor welded repairs was planning to grind as much off the weld off as possible and the use the air chisel to separate what remains but possibly from what you are saying might be a bit to much tool! Quote Link to post Share on other sites
stuart Posted September 7, 2018 Report Share Posted September 7, 2018 One word...........DONT! You would be much better off drilling the spot welds out properly with a dedicated spot weld drill like this https://www.ebay.co.uk/itm/Scratch-Doctor-Spot-Weld-Drill-Bit-Repair-Remover-Tool-Cutter-Cobal-Tip-8mm-2pc/361201195793?epid=1173177995&hash=item541944db11:g:TvwAAOSw1vlUyiC6 As Niall says you can do a lot of damage with using an air chisel, even bodyshops dont use them now except in an emergency. Stuart. Quote Link to post Share on other sites
Graham Posted September 7, 2018 Author Report Share Posted September 7, 2018 One word...........DONT! You would be much better off drilling the spot welds out properly with a dedicated spot weld drill like this https://www.ebay.co.uk/itm/Scratch-Doctor-Spot-Weld-Drill-Bit-Repair-Remover-Tool-Cutter-Cobal-Tip-8mm-2pc/361201195793?epid=1173177995&hash=item541944db11:g:TvwAAOSw1vlUyiC6 As Niall says you can do a lot of damage with using an air chisel, even bodyshops dont use them now except in an emergency. Stuart. Ok will forgo the air chisel then ! its not spot welds I have to deal with though at some point somebody has 'repaired' the inner rear wing to rear inner wheel arch flange by hacking of the (rusted ?) flange on the wheel arch and then re attaching it to the inner wheel arch with a series of 40mm long right angle patches rather that a continuous strip thats been run through a stretcher. TBH getting ahead of myself because before sorting out the arches there is the small matter of the bottom of the A and B posts being in the 'wrong' place and a sill to sort out ......you've seen the photo's ! but don't think I'll be attempting that job myself. Quote Link to post Share on other sites
stuart Posted September 7, 2018 Report Share Posted September 7, 2018 Safest way then is careful use of a thin cutting disc. Like these https://www.ebay.co.uk/itm/PACK-OF-10-Parweld-5-125mm-x-1mm-Thin-stainless-steel-metal-cutting-discs/171525467230?epid=25011368095&hash=item27efb6ec5e:g:EmEAAOSwzOxUVNtP Stuart. Quote Link to post Share on other sites
stillp Posted September 7, 2018 Report Share Posted September 7, 2018 Or you might find a reciprocating saw useful. Pete Quote Link to post Share on other sites
littlejim Posted September 8, 2018 Report Share Posted September 8, 2018 (edited) I used the spot weld drills. On mine there was lots of rust inside the chassis where the 4A narrows under the 'breastplate'. replaced all of the re-inforcing plates that run from top to bottom of the chassis in that area. Edited September 8, 2018 by littlejim Quote Link to post Share on other sites
Recommended Posts