Pair Of Mystery Tools? Info please.

Hi all,

Just started going through a large auction lot of tools that I bought recently that has some very nice tooling in it and found these 2 nice wooden cased item which have me completely stupmed as to what they are for:

The first appears to be user made, not sure about the other one, any info would be most helpful pleasre.

Regards,

Martin

I believe the first one is used, with a dial indicator that is not shown, for adjusting the cutting tool in a boring bar. The thumb screw with the ball end is used to push the back of the tool bit while the movement is measured by the indicator mounted in the opposite hole.

Pete

+1 on Peter Krogh's response.

And there's me thinking it's an adjuster for the thrupplenuts on a wimwam nurdler

Second one could be something to find the centre of a bar before machining ?

No, no, it doesn't have the requisite ostotigilator difrasials to be one of them.

I have something very like the larger coned adaptor in the bottom photo. It's for pouring whisky into my hip flask.

Actually it looks like an over-engineered centring device where you put the whole end of the chuck/spindle into the cone.

Neil

Thanks Guys, that seems a good use for the first one.

JS, the small spring on the second one does not allow any marking access to the centre of the main vee so cannot see how it could be used like that but I bow to your expertise, so much greater than mine for sure.

Any other thoughts?

Martin

Neil, do you mean for cross drilling a bar or similar?

Martin

Can anyone tell what kind of steel has been used?

Michael W

The second item is for centring in the mill. There was an article in MEW some years ago, might have been by Peter Rawlinson but really can't remember.

Paul

MEW No.47 by Peter Rawlinson

Paul

My grateful thanks to all for help on these items, second item is listed on EBay with credit given to MEW forum.

Regards,

Martin

I see you have one of those new rulers, that redefines the inch. You'll be out by nearly 5mm using that to convert 12 inches.

Yes, definitely not kosher to call an inch 25mm, even if you're at 2 inches you're closer to 51 than you are to 50. It was hardly worth bothering with the lettering.

Michael W

I have made a decision to give myself a fighting chance with my Stuart 10v and not use this ruler....

Thanks again for the help wioth these items.

Martin