Old Pen Kits

[John4337]

I was cleaning out some old stuff and found several of these kits that my father apparently purchased years ago. No instructions, only the sheet pictured. I'm guessing some sort of step bit or staggered drilling process? and then I don't see how it would work on the mandrel. Maybe they're junk at this point? Thoughts?

 

[Woodchipper]

Odd looking lower tube.

 

[Jarod888]

It wouldn't be all that hard to just step drill them. If you no longer want them or don't want to try and complete them, I'd take them off your hands. We can work out the details via private message if you're interested.

 

[ed4copies]

You don't need a step drill, just several bits used in succession at a measured depth.
Takes a little figgurin out!!

They work well when complete.
Yes, I did make them decades ago.

 

[dschem]

The drilling seems straightforward, but also wondering about the Mandrel

 

[John4337]

.

The drilling seems straightforward, but also wondering about the Mandrel

thats what has me stumped.

 

[ed4copies]

Turn between centers, just make a bushing (corian or some plastic) for each end. Use a 60 degree live and 60 degree dead center.