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+--- Thread: left hand drill bits (/showthread.php?tid=4588)
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left hand drill bits - JonE - 26-06-2020
Greig and others mentioned these in another diary thread. I thought best to add a new one.
They aren't easy to find in UK (i.e. the Irwin mentioned, which don't currently have great reviews on amazon) unless chinese generics.
Has anyone used the cheaper non Cobalt drills and found them useful for one off jobs like manifold studs?
German RUKO seem to be good value on ebay, and you can buy them in runs of 3 or more.
so what would the ideal progression be for a manifold stud? 1, 2 ,3mm?.... or is it best to pilot drill with a standard drill first.
i.e. is it better just to pick the optimum single drills to target the various possible jobs?
RE: left hand drill bits - Charles P - 26-06-2020
https://www.mscdirect.co.uk Sell them in sets or individually
As do https://www.drill-service.co.uk/products/drills/
RE: left hand drill bits - bob46320 - 27-06-2020
Saw them on Amazon the other day - They say good to use with Eziout tap extractors.
RE: left hand drill bits - Chris KC - 27-06-2020
In my experience Amazon reviews are worth about as much as the electrons they are written with and often for the wrong product.
RE: left hand drill bits - Barry Townsend - 27-06-2020
Loads for sale on eBay, actually bought some myself today
RE: left hand drill bits - Ivor Hawkins - 27-06-2020
(27-06-2020, 08:58 AM)Chris KC Wrote: In my experience Amazon reviews are worth about as much as the electrons they are written with and often for the wrong product.
Wholeheartedly agree Chris, though I still look at them knowing that friend of mine is employed by an American company to write them!
RE: left hand drill bits - Chris KC - 27-06-2020
Never forget 'The Shed'!
https://www.facebook.com/VICE/videos/1904858163161557/?v=1904858163161557
RE: left hand drill bits - JonE - 02-07-2020
bought a cheap UK Sealey set to start, and punched the centre of the two manifold studs. Feel soft enough. Realised that the LH drills are quite flat ended, so am going to have to open the hole out a good deal at shallow depth before the 3mm one will actually catch and stay central. So I see one does need them from 1mm upward to start applying the correct turning force from the beginning.
RE: left hand drill bits - Ruairidh Dunford - 02-07-2020
Derek Preece recommended a Snap On stud extractor set to me years ago. The nearest I can find to the set I have is this: https://ridgidtoolshop.co.uk/general-purpose-tools/ridgid-954-model-10-screw-extractor-set.html?gclid=EAIaIQobChMI64fXtI-v6gIVjLTtCh2W1Qh9EAQYBCABEgLqbfD_BwE
They are a very useful!
RE: left hand drill bits - Ian McGowan - 02-07-2020
I bought mine as a random set bargain bundle from Tracy's Tools a few years ago, no complains, little money and adequate for the tasks with care.