I’ve seen the name piloted counter bore for the modern tool.  I have one
Set that has inter changeable pilots, and Various drills.  Great for
cutting recesses for saw medallions I’d assume, since I have not used it
yet.  But it’s only been six years, no need to rush into things like this.


Lower right hand corner fir pilots.

https://kirkhmb.smugmug.com/Woodworking/Woodworking-Tools/i-RvBRKZ8

Kirk in HMB, who used my mitre box yesterday, to show a bunch or my other
tools how it was done in the old days.

On Mon, Jul 20, 2020 at 12:56 AM Mick Dowling 
wrote:

>
>
> It’s got a solid end. The end fits in an existing hole and the cutter
> makes a bigger diameter hole. Most likely for making a hole for a plug.
>
>
>
> > On 20 Jul 2020, at 5:51 pm, Christian Gagneraud 
> wrote:
>
> > Here you go, the one on the right is definitely unconventional to me:
> > https://www.trademe.co.nz/Browse/Listing.aspx?id=2692105014&archive=1
>
-- 
Sent from my iPad, apologies for the Auto Correct errors. Kirk