Protractor Vorel 18790, 500 mm length, metal measuring protractor

Vorel 18790 is a 500 mm metal measuring protractor designed for precise angle measurement, marking and transfer of layouts in workshop and construction environments. Built as a single rigid unit, this protractor combines a metal body with a clear scale to support carpentry, metalworking and technical drawing tasks where reliable, repeatable angle checks are required.

Advantages

The metal construction provides dimensional stability and resistance to deformation during regular use. A clear millimetre scale along the inner edge of the arms enables straightforward linear measurement up to 500 mm while integrated spirit vials allow quick level and plumb checks. The rigid head and defined edges facilitate accurate marking and transferring of angles, reducing the need for repeated measurements.

Suitable for

• Carpentry and joinery angle layout and checking
• Metalworking and fabrication angle transfer
• Technical drawing and workshop measurement tasks
• Construction site layout and on-site verification of angles

Key specifications

• Overall measuring length: 500 mm
• Material: metal construction for the main body
• Millimetre scale along inner edge: 1–500 mm
• Integrated spirit vials for level/plumb checking
• Rigid single-piece design for stable measurements

How to use

Place the Vorel 18790 protractor against the workpiece so that the flat reference edge sits firmly on the surface. Read the required angle or linear measurement from the scale on the inner edge; use the spirit vials to confirm level or plumb as needed. For transferring angles, mark along the protractor edge or use the head as a guide for scribing. Where fine positioning is required, align the protractor and make the marking in a single steady motion to avoid parallax errors.

Usage recommendations

Store the protractor in a dry place to avoid corrosion and check the scale and vials for damage before precise work. Use light clamping or positioning aids when measuring on small or unstable pieces, and verify critical angles with a secondary measurement method when required by the task.