Stainless Steel Crack Width Gauge & Gap Ruler – 0–80mm
Stainless Steel Crack Width Gauge & Gap Ruler – 0–80mm
Stainless Steel Crack Width Gauge & Gap Measurement Ruler
Get fast, accurate gap and crack measurements on any job site with this precision-engineered Crack Width Gauge. Crafted from durable 304 stainless steel, this compact tool is your go-to for concrete wall inspections, hardware installation, mechanical assembly, and structural monitoring — all in a pocket-sized form factor.
Key Features
- Fast & Precise Gap Assessment: Features a clearly marked 0.1–1.5mm comparison scale for immediate gap determination. Perfect for on-site crack monitoring of plaster, masonry, and concrete surfaces.
- 2-in-1 Feeler & Hole Gauge: Functions as both a feeler gauge and an inner diameter comparison tool, delivering 0.1–1.5mm gap measurement for more efficient structural and machinery assessments.
- Intuitive Standard Notch Design: Millimeter-scale markings and a standard notch make reading gap widths quick and straightforward — no experience required.
- Ultra-Slim & Portable: The thin sheet design slips easily into tight cracks on walls, concrete, and masonry. Ready to use instantly, right out of your pocket or tool bag.
- Wide Application Range: Ideal for crack measurement, machining alignment, door and window installation, valve clearance inspection, woodworking, and general construction projects.
- Rust-Resistant 304 Stainless Steel: Built to withstand demanding job-site conditions without corroding or losing accuracy over time.
Specifications
| Material | 304 Stainless Steel |
| Measurement Range | 0–80mm overall; 0.1–1.5mm gap scale |
| Product Size | Approx. 10 × 4 cm / 3.93 × 1.57 in |
| Weight | Approx. 30g |
| Battery Required | No |
| Certification | RoHS |
| Country of Origin | Made in China |
What's in the Box
- 1 × Crack Width Gauge Ruler
Ideal For
- Construction professionals and civil engineers
- Building inspectors and structural monitors
- Woodworkers and DIY enthusiasts
- Mechanics and hardware installers
- Home maintenance and outdoor project use
Note: Due to lighting and display settings, slight color variations may appear in product images. Minor dimensional variances may occur due to manual measurement.
Learn more: OSHA on personal protective equipment
Frequently Asked Questions
Q: What is the measurement range of this crack width gauge?
A: The crack width gauge features an overall measurement range of 0–80mm, with a precise 0.1–1.5mm comparison scale for fine gap and crack assessment on concrete, masonry, and other surfaces.
Q: Is this crack gauge suitable for both professional and DIY use?
A: Absolutely. The intuitive notch design and clear millimeter markings make it easy for professionals — such as building inspectors and civil engineers — as well as DIY enthusiasts tackling home maintenance, woodworking, or hardware installation projects.
Q: What materials can I inspect with this gap ruler?
A: This stainless steel gap ruler is designed for use on concrete walls, plaster, masonry, machinery components, doors and window frames, and more — making it a versatile addition to any tool kit for construction, structural monitoring, or mechanical assembly.
Q: Does the crack width gauge require batteries or any power source?
A: No batteries or power source are required. The crack width gauge is a fully mechanical tool — simply slide it into the gap or crack for an instant, accurate reading.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.