Alright, what is this doodad?

[Ironman]

I got this in another pile of Starret stuff, and I know it is not a wall hanging. Have any ideas?

 

[Xyphota]

Looks sort of like a durometer tester, but without the right base. There is a starrett product number behind the needle. I can read NoX643 or NoX043. The last digit is hiding in the pictures you posted.

EDIT: Looks like is just No. 643, Starrett just calls it a depth gauge:

643J Dial Depth Gage

Note:<br/>This item is discontinued. Please consider the recommended alternative listed above or contact our special order department at (978) 249-3551 x410 for more information.

www.starrett.com

 

[Matt-Aburg]

Dial depth gauges with measuring rods are positioned over holes and the graduated blade/scale is lowered until it contacts the bottom of the hole. They have a dial gauge fixed to the frame that displays the reading. Depth gauges with a single fixed rod or plunger are for short measuring ranges, and interchangeable rods are used for deeper holes and larger ranges. They are commonly used to determine depth-of-groove and feature measurements.

https://www.grainger.com/product/STARRETT-Dial-Depth-Gauge-0-in-to-0-2ZUH1

 

[Perry]

Can also be used to evaluate aircraft fuselage skin damage. Length, Width, and Depth of damage. Then off to the books.


Edit: That bar code on the back looks familiar. I may know where this unit came from.

 

[Ironman]

Looks sort of like a durometer tester, but without the right base. There is a starrett product number behind the needle. I can read NoX643 or NoX043. The last digit is hiding in the pictures you posted.

EDIT: Looks like is just No. 643, Starrett just calls it a depth gauge:

643J Dial Depth Gage

Note:<br/>This item is discontinued. Please consider the recommended alternative listed above or contact our special order department at (978) 249-3551 x410 for more information.

www.starrett.com

Looks sort of like a durometer tester, but without the right base. There is a starrett product number behind the needle. I can read NoX643 or NoX043. The last digit is hiding in the pictures you posted.

EDIT: Looks like is just No. 643, Starrett just calls it a depth gauge:

643J Dial Depth Gage

Note:<br/>This item is discontinued. Please consider the recommended alternative listed above or contact our special order department at (978) 249-3551 x410 for more information.

www.starrett.com

Can also be used to evaluate aircraft fuselage skin damage. Length, Width, and Depth of damage. Then off to the books.


Edit: That bar code on the back looks familiar. I may know where this unit came from.

It definitely is a depth gauge, seeing that post of Xyphota.
Where do you think it came from?