3M 41010, Scotch-Weld EPX Mixing Nozzle, Square Gold, 200mL and 400mL, 7100247630 
Insize 4701-1, ADJUSTABLE SQUARE, 6928640318351
$152.50
The straight edge can move and can be locked by the clamping screw.
Made of hardened stainless steel.
Related products
Measuring/ Inspection Instruments
$1,511.14