I am trying to find the exact tool which i assume is a modified t ruler to purchase but i cannot see any exactly like it. Any help would be appreciated:
Picture attached:
It is adjustable and has a fixed right angle piece on top so it is square with the material you are marking. All the t rulers i find only are essentially a standard ruler with an adjustable moving piece. I need the T ruler with the t at the top and then the adjustable moving part.
I'd consider this to be an identification question related to engineering, rather than a product recommendation question.
A search using "scriber and depth gauge" presents a large number of inappropriate devices and a smaller number of what appear to be the right device:
As one might note, this is not of the same scale, but appears to be an accurate match.
This video presents one method to construct a scriber and depth gauge or the same smaller scale. One could expect it is thus possible to build at a larger scale.
Searching for larger versions was fruitless, but only a short period of time was used for the search.
