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General => General => Topic started by: joebloggs on 16 October 2015, 06:06:11 am

Title: 90 degree countersink bit wanted
Post by: joebloggs 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?

Title: Re: 90 degree countersink bit wanted
Post by: Frosties 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?

Title: Re: 90 degree countersink bit wanted
Post by: celticdog on 16 October 2015, 03:26:03 pm

I've only got a 82 degree countersink.

Title: Re: 90 degree countersink bit wanted
Post by: joebloggs 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

Title: Re: 90 degree countersink bit wanted
Post by: chris.biker on 16 October 2015, 08:26:32 pm

 You can sharpen a normal drill to do the job.

Title: Re: 90 degree countersink bit wanted
Post by: 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 (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

Title: Re: 90 degree countersink bit wanted
Post by: joebloggs 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 (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

Title: Re: 90 degree countersink bit wanted
Post by: YamFazFan 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.