Buy Engineers Squares Online in Australia
Engineers Square Selection — Quick Reference
Engineers square (try square / precision square) = FUNDAMENTAL REFERENCE TOOL for CHECKING right angles + MARKING perpendicular lines + VERIFYING SQUARENESS during machining + fabrication + carpentry. Inspection-grade engineering precision.
| Engineers Square Type | Best For |
|---|---|
| Standard Engineers Square (Hardened) | Workshop reference — toolroom + fab |
| Inspection-Grade (Calibrated) | QA + audit-grade measurement |
| Common Sizes (50mm / 100mm / 150mm / 200mm / 300mm) | Match to workpiece scale |
| Combination Square | Multi-function — square + protractor + ruler |
| Try Square (Woodworking) | Carpentry + wood-friendly handle |
| Steel Try Square (Solid Hardened) | Production + sustained use |
| Precision Cylindrical Square | Inspection + surface plate use |
| Aluminium Try Square | Lightweight + workshop standard |
Critical: Engineers squares are PRECISION instruments — store CAREFULLY (drop = compromised accuracy). Check square against another square or surface plate periodically. NEVER use as pry bar or hammer. Match blade length to job — larger workpieces = larger square. Brands: Mitutoyo, Dasqua, Groz. Companion: measuring tools, combination squares, marking tools.
Engineers Squares for Precision Marking and Inspection in Australia
An engineers square — also called a try square or precision square — is a fundamental reference tool for checking right angles, marking perpendicular lines, and verifying squareness in machining, fabrication, and metrology work. AIMS Industrial stocks engineers squares for Australian trade, engineering, and workshop customers requiring accurate 90° reference in daily use.
Types of engineers square stocked
- Try squares — stock handle with blade at 90°; the standard tool for marking and checking right angles in general workshop and fitting work
- Engineers precision squares — hardened and ground to closer tolerances than general-purpose try squares; used for machining setup, surface plate work, and inspection where angular error matters
- Combination squares — adjustable head on a ruled blade; checks 90° and 45° from a single tool and doubles as a depth gauge and height gauge
Accuracy grades
Engineers squares are graded to accuracy class — Class 1 (tighter tolerance) for inspection and precision work, Class 2 for general workshop and fitting use. For most maintenance and fabrication applications, Class 2 is adequate. For machine tool setup and metrology, Class 1 is the appropriate specification. Cheap squares often carry no stated tolerance — avoid them for any work where angular accuracy matters.
Blade sizes
Common blade lengths stocked range from 50mm (for small components and confined spaces) through 75mm, 100mm, 150mm, and 200mm for general workshop and bench work. Larger blades are available for structural and plate fabrication applications where a longer reference edge is needed.
Materials
Quality engineers squares are made from hardened and ground tool steel or stainless steel, with the reference faces ground to the accuracy specification. The handle is typically cast iron or steel. Avoid chrome-plated mild steel squares — the plating wears off the reference face and the underlying material doesn't hold its form.
Care and use
A square is only as accurate as its handling. Store flat, not balanced on the blade. Regularly verify against a known reference — place the square against a flat surface, scribe a line, flip the square, and check whether the second line coincides with the first. Any divergence indicates error in the square itself. Grinding swarf and chips damage the reference faces — keep squares away from grinding operations.
Related precision tools
See also: vernier calipers, dial indicators, and precision rules and squares.
For specific accuracy requirements or volume enquiries, contact our team.
People Also Ask — Engineers Squares
What's the difference between Class 1 and Class 2 engineers squares?
Class 1 squares are held to tighter tolerance and suit machine tool setup and metrology work. Class 2 is the general workshop and fitting-work grade — adequate for most maintenance and fabrication applications.
How do I check an engineers square for accuracy?
Place the square against a known flat reference surface and scribe a line, then flip the square and scribe again. Any divergence between the two lines indicates error in the square itself.
What's the difference between a try square and a combination square?
A try square is a fixed 90° reference tool for marking and checking right angles. A combination square has an adjustable head that checks both 90° and 45° from a single tool, and doubles as a depth gauge and height gauge.
Why should I avoid chrome-plated mild steel engineers squares?
The chrome plating wears off the reference face over time, and the underlying mild steel doesn't hold its form as precisely as hardened and ground tool steel or stainless steel — which is why quality engineers squares are made from those harder materials instead.