Flintronic 2 Pcs Speed Square Set (18 & 30cm) Aluminium Alloy Triangle Ruler with 2 Carpenter Pencils
Product description
What it is and why people buy it
If you do any regular woodworking, furniture making, or general DIY layout work, a speed square set is one of those tools that gets used more often than you’d think. This Flintronic set pairs two aluminium alloy triangle rulers in metric sizes (18cm and 30cm) with two carpenter’s pencils. On paper, that combination is aimed at one job: marking angles and lines accurately without the hassle of fiddly measuring every time.
What makes it feel practical is the triangular design that’s specifically meant for laying out 90° and 45° angles. Add the matte black finish (to help reduce glare while you work) and laser markings for clearer, easier-to-read graduations, and it’s the kind of set you can reach for during basic framing marks, joint lines, drilling positioning, and general “draw the line properly” tasks.
That said, it’s still a measuring/marking tool rather than a full-blown precision surveying kit. If you’re expecting workshop-grade metrology, you may find you want something more specialised. For most everyday trades and DIY use, though, it’s a sensible, no-drama pack.
The essentials (at a glance)
The set includes two speed squares: 18cm (7 in) and 30cm (12 in). Each has clear metric graduations using laser marking technology. The aluminium alloy build is described as hard and resistant to wear, rust and deformation, which is exactly the sort of durability you want if your tools live on a bench, in a toolbox, or get carried around to different jobs.
There’s also a helpful design detail: a widened T-shaped base intended to fit around the measuring edge so the square sits more snugly and is less likely to slip while you mark.
The included pencils matter too. It’s a small thing, but it’s one less “do I have a proper pencil?” problem when you’re setting out lines and angles.
Key features that affect results
Where this set gets more convincing is in the way it’s meant to transfer your markings reliably.
First, it’s built for 90° and 45° angle marking. In day-to-day use, that means you can quickly line up and mark cut lines for simple corner work and common angled joints, instead of relying solely on eyeballing or less suitable rulers.
Second, it’s not only for straight cuts and right angles. The description mentions it can also help with drawing balance lines, vertical lines, wavy lines, and drilling positioning. If you’ve ever tried to get a drilling mark straight and then realised your guide is sliding around, you’ll appreciate any design intended to hold steady.
Finally, there are locating holes for drilling positioning, with diameters from 2mm to 16mm to accommodate common screw sizes. That’s a feature that can genuinely save time when you’re laying out and preparing holes.
A quick example of how you’d use it
Imagine you’re building a small furniture panel and need a neat 45° mark for a corner piece. You set the speed square against your edge, line up the 45° marking, and draw with the included carpenter’s pencil. If you also need a drilling position for a fixings point, you can use the locating holes to guide where the bit goes—then you’re into drilling without having to re-measure from scratch.
What’s included, and what you may need separately
You get two triangle rulers (18cm and 30cm) and two carpenter’s pencils, all in this one set.
However, depending on your project, you might still need other essentials: clamps or a straight edge can help if the workpiece is awkward to hold. And while the squares have locating holes for drilling positioning, the set doesn’t replace drill bits, screws, or any layout tools you already use for measuring overall length.
Tech specs
- Name: Flintronic 2 Pcs Speed Square Set
- Type: Triangle ruler / speed square set
- Size: 18cm (7 in) and 30cm (12 in)
- Material: Aluminium alloy
- Colour: Red (with matte black finish mentioned)
- Display: Laser marking on the ruler
- Refresh rate: N/A
- Processor: N/A
- Memory: N/A
- Included items: 2 x carpenter’s pencils
- Marking: Clear metric graduations using laser marking technology
- Locating holes: 2mm to 16mm (diameter range)
- Angles supported: Marking for 90° and 45° angles
Where it shines (and where it might fall short)
This is the sort of speed square set that makes sense if you want reliable marking for typical woodworking and construction layouts—especially angles, straight line work, and drilling positioning.
It also has some practical “anti-annoyance” touches: the aluminium alloy should resist wear and deformation, the finish is described as matte black to reduce glare, and the laser markings are meant to be easy to read.
Where it may not be ideal is if your work demands extremely fine, high-end accuracy checking, or if you’re frequently working in environments where you need heavy-duty protection and robust locking mechanisms. This set is a marking square, so if your priority is precision calibration rather than fast layout, you may find it sits more in a mid-range practicality bracket rather than top-end specialist territory.
Final verdict
Is it worth it?
A solid pick if you want a straightforward, metric speed square set for woodworking, furniture making, and general DIY—particularly for marking 90° and 45° angles and lining up drill positions using the locating holes. The two sizes (18cm and 30cm) are useful because they let you choose a length that suits the workpiece without constantly repositioning.
You may want to skip it if you’re searching for a specialised measuring system beyond angle marking and basic layout, or if your workflow relies on other tools for precision verification rather than quick set-out lines.
If you’re making cuts, laying out joint lines, or drilling fixings regularly, it’s the kind of tool that earns its space quickly. Just do a quick check of the laser markings’ visibility in your own lighting and confirm the locating hole range (2mm to 16mm) matches the screw sizes you commonly use.
Mini FAQ
What angles can this speed square set mark?
It’s designed for marking 90° and 45° angles.
Does it come with pencils?
Yes, the set includes two carpenter’s pencils.
Are the measurements metric?
Yes, the rulers use metric graduations.
Are there holes for drilling positioning?
Yes, it includes locating holes with diameters ranging from 2mm to 16mm.
Which size is better: 18cm or 30cm?
The set gives you both. Shorter work and smaller pieces may suit the 18cm ruler, while larger layouts can benefit from the 30cm length—choosing based on your material size is usually the easiest approach.