Eclipse Professional Tools ESB250 Sliding Bevel 250 mm (10 Inches)

Amazon

Designed to create bevelled edges and/or replicate existing angles Flat rolled carbon steel blade for strength and accuracy Aluminium base End screw for firmly locking the chamfer in the desired position Use the tool to duplicate any angle from 0 to 360 degrees

Zoro Tools

An accurate, easy to use tool for setting, transcribing, and replicating angles indirectly onto wood or other materials. Great for making furniture, putting up shelves, or fixing skirting boards and architraves