Pillar drill problems.

[Capitol]

That shows there is a hole in the collar. Look for the end piece of sheared pin inside the collar.

[harryagain]

Probably had a roll pin fitted.

[John Rumm]

Some of the threadlocking compounds will make a "slip fit" permanent (ish - you can separate them again by heating)

[Nightjar]

That looks like it is a pin with a thread at one end. That suggests that the only evidence of the pin, which it seems has almost certainly sheared, would be a single entry point, with a screwdriver slot in the end of the pin. If, as it appears, the screw for holding the depth marker is at about the same point, over enthusiastic tightening of that could have burred over the end of the pin, disguising the slot. You should have another, very close, look at the handle, both inside and out, for evidence of the pin.

Colin Bignell

[Huge]

You only have one soldering iron? What kind of DIYer are you?

[Dave Plowman (News)]

On my Lidl one, you remove the locking screw for the depth position indicator and then have access to an allen grub screw which locks the handle to shaft (via the threaded hole in the indicator body).

[Nightjar]

I think I've only got one - the 8 oz size:

Colin Bignell

[John Rumm]

How about, you drill and tap a hole in the outside bit, and use a grub screw to tighten it to the inner bit (missing the existing hole)? You might need a small access hole in the collar as well to get to the screw of course.

[Harry Bloomfield]

mark formulated on Wednesday :

One part fitting could be coincidence, but two suggests it is the correct handle.

There absolutely must have been a pin of some sort through the two parts, maybe it was a solid pin rather than a roll pin, which is why you cannot see it, but a pin there had to be. Try looking closely with a lens. When you find it, it should just punch out. A roll pin might not have been strong enough, given the leverage, which why they used a solid pin.

[meow2222]

Piece of paper, job done.

NT