Aluminium Combi / Square 300mm

The Aluminum Combination Square 300mm (12″) is a professional-grade measuring and marking tool built for Australian tradespeople and construction workers in Victoria and beyond. This aluminium combi square 300mm features a hardened stainless steel blade with clear etched metric and imperial graduations on both sides, paired with a precision die-cast aluminium alloy handle that keeps the tool lightweight yet strong enough for daily on-site use. It measures both 90-degree and 45-degree angles with confidence, includes a built-in spirit level for checking plumb and level, and comes with a removable brass scriber so you can mark your work accurately every time.

Product Information

What Are the Benefits of an Aluminum Combination Square?

The Aluminum Combination Square 300mm is more than just a ruler. It is a multi-purpose precision tool that helps carpenters, builders, metalworkers, and woodworkers work faster, smarter, and more accurately on every job. Here are six key benefits that make this tool a must-have in your toolbox:

• Accurate 90 and 45 Degree Angles
• Dual Metric and Imperial Scale Markings
• Built-In Spirit Level for Added Accuracy
• Durable Stainless Steel Blade That Lasts
• Removable Brass Scriber for Clean Mark Lines
• Lightweight Aluminium Alloy Body Reduces Fatigue

Features of the Aluminum Combination Square 300mm

The Aluminum Combination Square 300mm (12″) is packed with professional-grade features that make it one of the most versatile measuring tools available.

• Precision Die-Cast Aluminium Alloy Stock – The handle is machined from high-quality aluminium alloy for accuracy, durability, and a secure grip that lasts through rough job-site conditions.
• Hardened Stainless Steel Blade with Etched Graduations – The 300mm stainless steel blade carries deep-etched graduation marks in both metric (mm) and imperial (inches) that will not rub off with regular use.
• 90-Degree and 45-Degree Angle Measurement – The square is precision-set for both 90-degree right angles and 45-degree mitre angles, giving tradespeople two common angles in one compact and portable tool.
• Built-In Spirit Level Vial – A small but accurate bubble level is integrated into the stock, allowing quick checks for horizontal level or vertical plumb alignment on posts, frames, and fixtures.
• Removable Brass Scriber Stored in the Handle – A brass scriber is included and stored conveniently within the stock, ready to mark clean layout lines on timber, steel, or sheet materials whenever needed.
• Adjustable Blade with Brass Locking Screw – The stainless steel blade slides smoothly along the aluminium stock and locks firmly in place using a brass thumb screw, allowing the tool to also function as a depth gauge or height gauge.

Who Is This Tool Best For?

The Aluminum Combination Square 300mm works across a wide range of trades and tasks. Here is a quick guide to who will benefit most from using this tool on the job:

Frequently Asked Questions (FAQs)

1. What is an Aluminum Combination Square used for?

An Aluminum Combination Square is a multi-function measuring and marking tool used in carpentry, woodworking, metalworking, and general construction. It helps you mark and check 90-degree and 45-degree angles, measure depth and height, scribe layout lines, and check if a surface is level, all using one single compact tool.

2. Is the 300mm aluminum try square suitable for both metric and imperial measurements?

Yes, the 300mm aluminum try square features a dual-sided stainless steel blade with clear etched markings in both millimetres (metric) and inches (imperial). This makes it easy to use with any set of building plans, whether they follow Australian metric standards or older imperial formats.

3. How do I use the spirit level on the combination square?

Simply hold the aluminium alloy stock against the surface you want to check. The built-in bubble vial in the handle will show whether the surface is horizontal (level) or vertical (plumb) based on where the bubble sits within the marked lines. It is a quick and easy check that saves you time on site.

4. Can this tool precision aluminium square ruler be used for metalworking?

Absolutely. The hardened stainless steel blade is tough enough to stay accurate on metal surfaces, making this tool precision aluminium square ruler suitable for sheet metal layout, engineering tasks, and fabrication work. The lightweight aluminium alloy body also makes it easy to handle in workshop environments.

5. How does the locking mechanism on the metal carpenter square 300mm work?

The metal carpenter square 300mm uses a brass thumb screw located on the aluminium stock to lock the stainless steel blade at any position along its length. Simply slide the blade to the desired depth or position, then tighten the screw to hold it firmly in place. This feature also makes it useful as a marking gauge or depth gauge.