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Bahco Combination Square CS400 Review: Accurate, durable layout tool?

Bahco CS400 400mm Combination Square, Orange
4.6
[Durable Die-Cast Body]  Robust housing resists impact and wear for long-lasting performance.
[Stainless Steel Blade]  Industrial-grade blade provides sharp, corrosion-resistant cutting with sustained edge retention.
[Includes Scriber]  Integrated scriber enables precise marking and layout for accurate cuts.
[400mm Length]  Long 400mm size offers extended reach and capacity for larger materials.
[Workshop-Ready Tool]  Engineered for industrial and professional use across workshops and job sites.
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Workshop measuring and marking gear that promises accurate layout and long-lasting use. Confident, precise results reduce rework for carpenters and DIYers when cutting or checking joints. Is Bahco Combination Square CS400 the large-format square that belongs in your toolbox?

⚡ At a Glance
  • Measuring Accuracy: Stainless steel industrial blade, 400mm length for extended measuring runs
  • Best for: Carpenters, joiners and DIYers who need longer measuring and marking reach
  • Not ideal for: Compact, pocket-sized measuring needs where a shorter square would be preferable

Die cast body with a 400mm stainless steel industrial blade and a supplied scriber. Larger size and robust construction suit users who prioritise extended reach and lasting durability.


Long, accurate measures – with a 400mm stainless steel industrial blade

Stainless steel industrial blade provides a rigid straight edge across the full 400mm length for measured runs.

Measure longer boards and panels without swapping tools, helping speed up layout and reduce joins.

Robust build for workshop use – with a die cast body

Die cast construction adds structural rigidity and resists knocks common on site and in busy workshops.

Stable body maintains alignment over time, cutting down on replacements and keeping marks consistent.

Immediate marking and scribing – with included scriber

Complete with a scriber so measurements can be transferred directly from the blade to material.

Mark and scribe in a single step to speed up setup and improve layout precision.

✨ The 4 Key Reasons for Bahco Combination Square CS400
  1. Die cast body – Keeps square true and resists wear on jobsite
  2. 400mm stainless steel blade – Measures longer runs accurately without needing extra tools
  3. Complete with scriber – Lets users mark directly from measurements, saving time
  4. Industrial-grade blade – Sustains edge and gives consistent, repeatable layout lines
📋 Technical Details at a Glance
  • Category: Combination square
  • Length: 400mm
  • Body Material: Die cast
  • Blade Material: Stainless steel industrial blade
  • Included Accessory: Scriber
❓ Frequently Asked Questions

Q: What is the blade length?

A: The blade is 400mm long.

Q: Does the square include any accessories?

A: Yes, it is supplied complete with a scriber for marking.

Q: What materials are used for the body and blade?

A: The body is die cast and the blade is a stainless steel industrial blade.

🏆 Our Verdict

The Bahco Combination Square CS400 suits tradespeople and serious DIYers who need extended measuring reach and durable construction. A 400mm stainless steel blade, die cast body and included scriber make layout and marking faster and more reliable. While cost varies, strong build quality and positive user feedback point to good long-term value.