Protractor Manufacturer,Supplier and Exporter in India
Product Code : EL-CLE-9096
Jlab Export is a leading Protractor Manufacturer,and suppliers in India
A steel protractor measures and marks angles on flat work in the fitting and sheet metal shop. This one is 85 mm in diameter and graduated to 180° in both directions. With two rows of figures, an angle can be read from the left or the right of the base line.
Specifications
| Material | Steel |
| Diameter | 85 mm |
| Scale | Graduated to 180° in both directions |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Workshop Practice: Marking and Checking Angles
Students can mark an angled cut on a strip of mild steel and saw just outside the line with the Hacksaw. They then file down to it with the Engineers Flat Files. Finally, the protractor checks the finished angle against the drawing.
In a sheet metal or drawing lesson, teachers can show how a bevel or chamfer is laid out from a reference edge. They can then compare the protractor with the fixed right angle of an Engineers Square.
Frequently Asked Questions
How do I read an angle from either side?
Line the base edge up with one side of the angle and set the centre mark on the corner. Read the scale where the other side crosses it, using the row of figures that starts from zero on that side.
How do I mark out an angle on metal?
Hold the base on the reference edge with the centre at the point. Make a small tick with a scriber at the reading, then join the tick to the point with a scriber run along a Steel Rule.
What is the protractor used for in a workshop?
It sets out and checks angles on flat parts: chamfers, bevels, angled cuts and the edges of sheet metal pieces before bending. For right angles alone, a square is quicker.
Why choose a steel protractor over a plastic one?
A scriber can be run along a steel edge without cutting into it. Steel is also heavier, so the protractor lies still on the work while you mark. Wipe it with a little oil to keep rust away.
Other Squares and Marking Tools
- Square (hardened steel, parallel edges)
- Wing Divider (box jointed, with locking screw)
- Universal Surface Gauge (for lines at a set height)
For a quote, use Add To Cart or send us a message through the contact page.
Last updated: 5 November 2026
