Square Ruler Manufacturer,Supplier and Exporter in India
Product Code : EL-MWLE-9344
Jlab Export is a leading Square Ruler Manufacturer,and suppliers in India
Lay this flat L-shaped rule on a part or a drawing to see at once whether a corner is truly square, then read the length along either leg. The legs are 3 in and 4 in long, cut from stainless steel 0.022 in thick. Graduations run in 3/32 in intervals on the front, with the metric equivalent on the back.
Square Ruler Specifications
| Shape | Flat L shape, 3 in x 4 in legs |
| Material | Stainless steel, 0.022 in (about 0.56 mm) thick |
| Front graduations | 3/32 in intervals |
| Back graduations | Metric equivalent |
| Use | Checking right angles and measuring |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Marking-Out Exercises for Students
A good first job in sheet-metal practice is a small rectangular template. Students hold the square ruler on a piece of Aluminium Sheet, draw each side along a leg with a Scriber and check every corner before cutting. They then cut to the lines with Aviation Snips and lay the square on the finished piece to see how close they stayed.
In model making and drawing classes the same square sets out right angles on card or paper. Students can also measure a small part in inches on the front, turn the ruler over and read it in millimetres, which teaches both systems on one tool.
Frequently Asked Questions
How does a square ruler differ from an engineers square?
This square ruler is a flat L of thin stainless steel with graduations on its legs. It lies flat on sheet, card or small parts and measures as it checks. An Engineers Square has a hardened blade for testing a filed edge against a face.
Can I read both inches and millimetres on it?
Yes. The front is graduated in 3/32 in intervals and the back carries the metric equivalent. Turn the ruler over to change systems, and keep to one side for a whole job so the readings stay consistent.
How can I check that the square itself is true?
Hold one leg against a straight edge and draw a fine line along the other leg. Flip the square over, hold it against the same edge and draw again from the same point. If the two lines match, the corner is square. If they spread apart, the error is half the gap.
How should the square ruler be stored?
Keep it flat in a drawer or tool tray, away from heavy tools that could bend the thin legs. Do not use it to scrape or lever. A fall onto the corner can push it out of square, so recheck it after any knock.
Other Rules, Squares and Marking Tools
- Steel Rule (stainless, metric and inch)
- Straight Edges
- Punch Tool (centre punch)
- Vernier Height Gauge
For a quote, use Add To Cart or send us a message through the contact page.
Last updated: 5 November 2026
