Date: 16-06-24  Time: 20:10 pm
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Author Topic: 90 degree countersink bit wanted  (Read 1227 times)

joebloggs

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90 degree countersink bit wanted
« on: 16 October 2015, 06:06:11 am »
As it says, want one for both alloy and steel, not going to be used often and ones online seem a little expensive just to leave in the bottom of the tool box.  :eek

Anyone brought a cheapie and was it any good?


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Frosties

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Re: 90 degree countersink bit wanted
« Reply #1 on: 16 October 2015, 06:39:01 am »
How big does the countersink have to be Joe.


No joy if you used the biggest steel drill bit that'll fit in the chuck?
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celticdog

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Re: 90 degree countersink bit wanted
« Reply #2 on: 16 October 2015, 03:26:03 pm »
I've only got a 82 degree countersink.
« Last Edit: 16 October 2015, 03:27:24 pm by celticdog »
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joebloggs

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Re: 90 degree countersink bit wanted
« Reply #3 on: 16 October 2015, 07:49:39 pm »
Hole is 9mm but countersinking a m8 which is about 16.5 diameter. Don't want to use large drill bit as want accurate hole (ocd) may ask engineering at work but have feeling they'd probly use a drill bit as finish not a priority to them
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chris.biker

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Re: 90 degree countersink bit wanted
« Reply #4 on: 16 October 2015, 08:26:32 pm »
 You can sharpen a normal drill to do the job.
« Last Edit: 16 October 2015, 08:27:18 pm by chris.biker »
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Rob R

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Re: 90 degree countersink bit wanted
« Reply #5 on: 16 October 2015, 08:37:44 pm »
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joebloggs

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Re: 90 degree countersink bit wanted
« Reply #6 on: 16 October 2015, 09:39:12 pm »
Quote from: Rob R on 16 October 2015, 08:37:44 pm
https://www.machinemart.co.uk/shop/product/details/cht530-6pce-hss-countersink-set?da=1&TC=SLI-060235530
not sure that they're 90 degrees though.
Rob

Thanks, only thing is I don't want to invest £20 + on tools I'd rarely use again
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YamFazFan

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Re: 90 degree countersink bit wanted
« Reply #7 on: 25 October 2015, 07:26:04 pm »
Car boot sales are an absolute goldmine for tools. If you are prepared to spend a few minutes sorting through boxes you can find some real gems at bargain basement prices ;).
Saw loads of countersinks at the local one this morning.
Even the second-hand tool dealers who have all the best stuff are a fraction of the cost of buying new.
I rarely buy any tools from the shops any more.
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