Guest Posted May 17, 2008 Share Posted May 17, 2008 any metal experts out there I Need to drill some 6mm holes in stainless steel,i have tried going from small to large tried new bits still not getting anywhere the bits wont touch it whats going on help please Quote Link to comment Share on other sites More sharing options...
Stu Posted May 17, 2008 Share Posted May 17, 2008 you need to drill it pretty slow Gary plenty of lube and keep the drill cutting best bet is a piller drill so you can get the pressure on it too Quote Link to comment Share on other sites More sharing options...
Guest Posted May 17, 2008 Share Posted May 17, 2008 you need to drill it pretty slow Gary Ah that could be it,i'm just using a normal black n decker jobbie,no speed control on it,any ideas as to what rpm i should be going at Quote Link to comment Share on other sites More sharing options...
Stu Posted May 17, 2008 Share Posted May 17, 2008 about 800 rpm if that Quote Link to comment Share on other sites More sharing options...
techno Posted May 17, 2008 Share Posted May 17, 2008 Or some solid carbide drills. Quote Link to comment Share on other sites More sharing options...
Guest Posted May 17, 2008 Share Posted May 17, 2008 Or some solid carbide drills. my local Screwfix store sells Cobalt bits will these be ok http://www.screwfix.com/prods/80584/Erb ... -Set-19-Pc Quote Link to comment Share on other sites More sharing options...
Stu Posted May 17, 2008 Share Posted May 17, 2008 at that price i would go to a local machine shop and ask them to drill the holes for you Quote Link to comment Share on other sites More sharing options...
techno Posted May 17, 2008 Share Posted May 17, 2008 (edited) cobalt drills would be better than the hss ones! Edited May 17, 2008 by techno Quote Link to comment Share on other sites More sharing options...
techno Posted May 17, 2008 Share Posted May 17, 2008 at that price i would go to a local machine shop and ask them to drill the holes for you 28 quid for 19 drillls is not a bad price. Quote Link to comment Share on other sites More sharing options...
Philk Posted May 18, 2008 Share Posted May 18, 2008 You should be able to do it starting very small and going up 1mm at a time, but it will be slow. Quote Link to comment Share on other sites More sharing options...
DutchMick Posted May 18, 2008 Share Posted May 18, 2008 If you really want to do it then a titanium nitride coated solid carbide bit is the way to go, but as most things to do with SS, milling, grinding, cutting, drilling you can better have a look round for a small workshop in your area and talk to one of the workers, most things can be done for a fiver in their lunch break. I TIG weld SS free for bikers. Quote Link to comment Share on other sites More sharing options...
Guest Posted May 18, 2008 Share Posted May 18, 2008 go to car boot and get them for £3 a tin Quote Link to comment Share on other sites More sharing options...
Guest Posted May 18, 2008 Share Posted May 18, 2008 go to car boot and get them for £3 a tin what cobalt drills £3 a tin how manys in a tin ,let me know what car boot you go to and ill buy a few tins at that price or do you mean the cheap and nasty foreign crap Johns I;m not being sarky but 5 years ago i used to be a part time car boot trader and i bought all the cheep tools from the warehouses in Manchesterfor examplejunior hacksaws £1.50 a dozen sold for 99p each Makita 240v copies £15 each sold for £49.99 each28 peice socket sets £1 each sold for £4.99 eachi gave it up because it was to competative 1 in 3 stalls at a car boot sell these tools usualy Black spur and Rolson brands Quote Link to comment Share on other sites More sharing options...
Guest Posted May 19, 2008 Share Posted May 19, 2008 that not bad at all sorry i mean lidlhttp://www.lidl.co.uk/uk/home.nsf/pages/i.homekeep a look out on here this is were my dad get his from ok mate Quote Link to comment Share on other sites More sharing options...
Philk Posted May 19, 2008 Share Posted May 19, 2008 that not bad at all sorry i mean lidlhttp://www.lidl.co.uk/uk/home.nsf/pages/i.homekeep a look out on here this is were my dad get his from ok mate Good link Johns. Worth a look. Quote Link to comment Share on other sites More sharing options...
Guest Posted May 19, 2008 Share Posted May 19, 2008 you are welcome Quote Link to comment Share on other sites More sharing options...
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