Can anyone identify these inserts?

Can anyone identify these inserts?

This topic has 3 replies, 3 voices, and was last updated 31 March 2024 at 12:03 by Oldiron.

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30 March 2024 at 14:31 #723122
Norman Billingham
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@normanbillingham91454
Out of pure curiosity, does anyone know what tooling these inserts are intended to fit? I found two in a box of random cutting tools bought at a SMEE rummage sale. They look to be 60 degree internal threading, and are drilled through – so presumably for forced coolant but I’ve never seen a holder that would take anything with that shape of shank.
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30 March 2024 at 15:05 #723131
bernard towers
Participant
@bernardtowers37738
They are Horn inserts and very good they are too I pick them up ocasionally and have made a holder, even got one that goes into a 2mm hole!!!
30 March 2024 at 22:22 #723271
Norman Billingham
Participant
@normanbillingham91454
That’s it! Many thanks.
31 March 2024 at 12:03 #723476
Oldiron
Participant
@oldiron
On 30 March 2024 at 15:05 bernard towers Said:

They are Horn inserts and very good they are too I pick them up ocasionally and have made a holder, even got one that goes into a 2mm hole!!!

Good inserts. I made my own crude holder for them.
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