name of this tool?

[dance]

Any ideas where one can buy the type of T-square this young lady is using in this video?

thank you!

 

[blackrodd]

I believe it's one of these,---
As you can see its a plastering/dry lining tool, so check those suppliers out.
http://www.tool-net.co.uk/p-315961/mars ... AspC8P8HAQ
HTH Regards Rodders

 

[Phil Pascoe]

Glaziers use squares very similar.