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Old 3rd January 2019, 04:28 PM
Andy H Andy H is offline
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Full Name: Andrew Hudson
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Default 60 degree countersink

Hi
Anyone know where I can get a 60 degree countersink
The bolts I have for the spokes in the hubs have a shallower angle than usual
Thanks
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Old 3rd January 2019, 04:32 PM
daves bigmac daves bigmac is offline
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Full Name: david jones
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If you cant get hold of one it might be worth getting a standard counter sink and getting a tool sharpening company to regrind it to the needed angle.


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Old 3rd January 2019, 06:01 PM
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chbeyer chbeyer is offline
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Full Name: Christoph Beyer
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Hi Andrew,

nothing special about those, any decent tool shop should be able to sell you one for a fiver

Otherwise you can buy them online anywhere, for ex here :

https://www.cutwel.co.uk/hole-making...1-c1136-series

Best
chris
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Old 3rd January 2019, 06:04 PM
Brian Hutchings Brian Hutchings is offline
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Centre drills have a 60 deg angle.
Brian
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Old 3rd January 2019, 07:39 PM
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carl_byrne carl_byrne is offline
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Full Name: Carl Byrne
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Andy, are they imperial screws - bsf, bsw ? If so, the countersink will be 82 degrees, not 60 degrees.

I am not aware of any general purpose screws that have a 60 degree head.

Just a thought.

Cheers Carl.
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Old 4th January 2019, 07:44 AM
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Royal Letters Patent Royal Letters Patent is offline
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Full Name: Ian Larcher
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Countersunk rivets often have a 60 deg countersink.
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Old 20th January 2019, 05:15 PM
hornsbyfan hornsbyfan is offline
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Full Name: Nigel McBurney
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G and M tools have 60 degree csk on their web site,look up stock no 80206081 They are at Ashingtonwest sussex, Have dealt with them for nearly 30 years
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