Engineer Square - 200mm
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Product Information
Full details
The AB Tools 200mm Engineer Square is designed for professional machinists, woodworkers, and serious hobbyists who require high-accuracy layout and verification of 90-degree angles. Its primary benefit is providing a reliable, rigid reference for marking and checking internal angles during precision fabrication tasks, though it lacks a graduated scale, meaning it serves as a square rather than a combination ruler.
All features
| Model Part Number | TE699 |
|---|---|
| Brand | AB Tools |
Extended Product Information
FAQs
Can I use this square for layout on wood?
Yes, it is excellent for marking fine, accurate lines on wood, provided you use a marking knife for the highest precision.
Is this square calibrated for NIST standards?
This tool is designed for general engineering and workshop precision but is not certified for NIST laboratory calibration.
Does it have a ruler built into the edge?
No, this is a dedicated engineer's square focused on angle verification, not linear measurement.
Is the square made of hardened steel?
It is constructed from robust, durable materials intended for daily workshop use in engineering and woodworking.
How do I check if my square is still accurate?
Place the square against a straight edge on a flat surface, draw a line, then flip the square over and realign it with the line; if there is a gap, the square is no longer true.
Troubleshooting
The square appears slightly out of calibration
Verify if the issue is with the tool or your workbench surface; check the square against a known reference, such as a ground machinist's plate.
Surface oxidation or light rust on blade
Gently clean the surface with a fine-grade abrasive pad and apply a light machine oil to prevent further corrosion.
Pros and Cons
Pros
- High accuracy for precise marking
- Sturdy, non-flexing construction
- Optimal 200mm size for most workshop tasks
- Reliable for checking machine tool calibration
Cons
- No etched measurement scales
- Requires careful storage to maintain calibration
- Limited to 90-degree angles only
Setup, Compatibility & Care
This square arrives factory-calibrated and is ready to use out of the box. To ensure its long-term accuracy, handle the tool gently and avoid dropping it on concrete floors, as impact can throw off the squareness. Always store the tool in a dry, temperate environment to prevent oxidation, preferably in a tool box drawer or hanging on a pegboard where it is protected from other heavy steel tools. Periodically wipe the blade with a light coat of machine oil to protect the finish if you work in a high-humidity environment.