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7th Mar 2021, 06:45 PM #1Golden Member
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- Apr 2018
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- Drouin Vic
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- 633
Anyone recognise this carbide-blade countersink?
I picked this up (like most of my stuff) in a box of odds & ends at a clearing sale a few years ago. I like the design but there are multiple chips in the blade so it's only useful at diameters that correspond to the undamaged parts of the blade. Can anyone point me to where I might find a replacement blade for it?
countersink.jpg
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7th Mar 2021, 08:31 PM #2Most Valued Member
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- May 2011
- Location
- Murray Bridge S Aust.
- Age
- 71
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- 5,945
Thanks for the pic Pete. Could it be reground? If not, could we have a minimum size required, someone may have a piece or know where it could be obtained.
KrynTo grow old is mandatory, growing up is optional.
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7th Mar 2021, 09:41 PM #3China
- Join Date
- Dec 2005
- Location
- South Australia
- Posts
- 1,656
If there is not enough to regrind you can (or could ) buy Tungsten blanks from kennametal
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7th Mar 2021, 09:45 PM #4Golden Member
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- Apr 2018
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- Drouin Vic
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- 633
I'll have to dismantle to determine if it might be able to be reground, it has a groove all the way along the edge like a chipbreaker, forming an acute edge at the face. It looks to me like it's supposed to be replaceable.
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7th Mar 2021, 09:51 PM #5Member
- Join Date
- Dec 2014
- Location
- melbourne
- Posts
- 72
That looks like a product that was made by a company called Fring Engineering that used to be in Bayswater.
I don't think they are still in business though.
Robert
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8th Mar 2021, 12:09 AM #6
...and if it is a minimum size, you could silver solder or braze a short bit of mild steel to the chuck end and fil/grind it to the size of the carbide bit before regrinding it....
Cheers, Joe
retired - less energy, more time to contemplate projects and more shed time....
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8th Mar 2021, 09:38 PM #7Golden Member
- Join Date
- Sep 2008
- Location
- Riddells Creek, Vic.
- Posts
- 831
I have a few Microstop Adjustable Depth Countersinks with replaceable T/C tips and Pilots that are mainly used in the aircraft industry. Not the same as yours but cutters for these are readily available from the USA.
The most common countersink angle for these is 100 degrees but other angles are available. The photo shows cutter retaining screws and 100 and 120 cutter angles on different size cutter heads.
Microstops.jpg
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