What are these?

[HollowpointParticipant @hollowpoint]

[JasonBModerator @jasonb]

Looks like they would work quite well in a between ctrs boring bar

[EmgeeParticipant @emgee]

I used the short type in a cross drilled hole in the 5/8" toolholder of a Dore boring and facing head, tool bit secured with a grub screw in the end of the bar, or if the tool is angled to reach the bottom of a blind bore the securing screw was at 90 degrees to the toolbit.

Emgee

Edited By Emgee on 01/06/2023 18:37:32

[Clive FosterParticipant @clivefoster55965]

+1 for Emgee

Ages ago i was given a small baccy tin full of similar cutters in both HSS and carbide.

Donor said "You will find these handy as you have a small boring head." Presumably meaning they could be used as Emgee says in a shank with suitable cross drilled hole.

If I ever find the need I shall make a shank.

Clive

[HollowpointParticipant @hollowpoint]

I think you might be right. For that type of boring head or line boring. Thanks.

[Neil WyattModerator @neilwyatt]

Sincere apologies!

For some unfathomable reason the post got reported. I accidentally pressed the wrong button and deleted the post not the report.

I don't know if Hollowpoint could replace the image?

Sorry for the inconvenience.

Neil

[JasonBModerator @jasonb]

I've put it at the top

[old martParticipant @oldmart]

They do look like the old style boring bar bits. And there is a toolholder for turning laying about in the workshop which holds something similar.

Edited By old mart on 02/06/2023 19:05:33

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