0.01mm Crack Width Gauge Card – Precision Defect Measurement Tool

Measure Cracks with Professional-Grade Precision

The Crack Width Gauge Card is a compact, card-style measurement tool engineered for accurate defect detection and structural evaluation. Whether you're a hobbyist, student, collector, construction inspector, or workshop enthusiast, this transparent PET gauge delivers repeatable 0.01mm resolution in the palm of your hand. Made in Mainland China.

Key Features

• 0.01mm Precision: Detect linear widths from 0.03–2.2mm and dot diameters from 0.05–2mm — professional-grade accuracy in a pocket-sized tool.
• Transparent PET Construction: Crystal-clear material allows you to overlay the scale directly on the surface being measured for fast, accurate readings.
• Double-Sided Protective Film: A scratch-resistant coating on both faces keeps the scale surface clean and readable through repeated field use.
• Card Centering Mechanism: The integrated centering feature aligns the gauge consistently, eliminating guesswork and improving measurement repeatability.
• Multi-Inspection Single Scale: One card handles linear width, dot diameter, and general defect assessment — reducing the number of tools you need to carry.
• Ultra-Portable Design: At just 9.8 × 5.5 cm (approx. 3.86 × 2.17 in), it slides effortlessly into any toolkit, binder, or pocket for on-site work.
• Versatile Applications: Ideal for woodworking, construction inspection, material testing, quality control, scale modeling, and educational projects.

Specifications

Who Is This For?

This crack gauge is perfect for anyone who needs reliable, repeatable measurements without bulky equipment. Students studying materials science or civil engineering will appreciate its hands-on accuracy. Hobbyists and scale modelers use it to verify detail tolerances. Collectors rely on it to assess surface conditions. Professionals in construction, quality assurance, and inspection find it a dependable backup or primary field gauge.

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Safety & Standards Reference

For information on measurement standards and dimensional inspection practices, visit the National Institute of Standards and Technology (NIST) – Metrology, the authoritative U.S. body for measurement science and standards.

Note: Due to lighting and display settings, slight color variations may appear. Manual measurement tolerances may apply to listed dimensions.

Frequently Asked Questions

Q: What is the measurement range of this crack width gauge card?

A: The crack width gauge measures linear widths from 0.03 mm to 2.2 mm and dot diameters from 0.05 mm to 2.0 mm, with a resolution of 0.01 mm — suitable for fine defect detection in construction, woodworking, and material testing.

Q: What material is the crack gauge made from?

A: It is made from transparent PET (Polyethylene Terephthalate), a durable and lightweight plastic. The double-sided protective film coating adds scratch resistance and keeps the scale legible through extended use.

Q: Is this tool suitable for beginners and students?

A: Absolutely. Its straightforward card design, clear transparent scale, and card-centering feature make it easy for beginners, students, hobbyists, and collectors to use accurately right out of the packaging — no technical training required.

Q: How portable is this crack measurement tool?

A: At just 9.8 × 5.5 cm, it is credit-card sized and weighs almost nothing, making it ideal for field work, site inspections, or carrying in a toolkit, notebook, or pocket at all times.