slomoshun
Part of things
Going forward one nut and bolt at a time
Posts: 319 
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Apr 17, 2015 13:39:01 GMT
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In need of some guidance reference drill bit quality and good make.
Need to drill one small 3mm hole in stainless exhaust but have tried many < supposedly for stainless > drill bits and gone through drilling process slowly not to generate heat but all types of bits have caved in.
Need to go to a supplier where i can walk in and buy a recommended drill bit that will drill this one hole.
Any info welcome
Thanks
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Traction and horsepower is nearing perfection
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Apr 17, 2015 14:33:56 GMT
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Colbalt drill bits, ive used Dewalt ones that were decent.
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v8ian
Posted a lot
Posts: 3,765
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Apr 17, 2015 14:52:38 GMT
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Stainless can be very hard to drill as you are aware, The fact you have blunted drills trying to do so, could make things harder still as you may have bits of drill embedded in the hole you have started or hardened the, my suggestion would be get a cobalt drill, drill if possible a new hole, I would also suggest a cutting compound generously applied, there are plenty to chose from, RTD, Tuffcut, Trefolux, even Tallow at a push.
I would be thinking, assuming you are using a battery drill. use it on screwdriver mode, then you should not overheat the drill at all,
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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muffy
Part of things
Posts: 78
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Apr 17, 2015 16:01:58 GMT
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I have used drill bits from screw fix. Come in packs of 5, very surprised how long they lasted drilling many holes for riviting stainless. still using them now - Just resharped them.
Ben
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Apr 17, 2015 16:15:10 GMT
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1993 Fiat Panda Selecta
2003 Vauxhall Combo 1.7DI van
2006 Mercedes Kompressor Evolution-S AMG SportCoupé
"You think you hate it now, wait til you drive it"
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slomoshun
Part of things
Going forward one nut and bolt at a time
Posts: 319
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Apr 17, 2015 16:43:29 GMT
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thanks for all the advice
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Traction and horsepower is nearing perfection
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