Inlay chisels

[Peter White]

Hi everyone.Been lurking for a while and this is my first post.Peter White from New Zealand.
A friend of mine asked if I could find if any one knows how they are used.
It is a 3 chisel set marked Seffield Leyland International Turning.Tools-HL50002.
Any help would a great help
Thanks
Peter

[Hayes Rutherford]

A picture would sure help.

[Peter White]

Thanks for reply will get photo up asap
Thankyou