Parametric Radius Gauge Card Set 1–20 mm + Box

This is a complete radius gauge card set designed for quickly checking and measuring rounded corners on 3D prints, parts, enclosures, and mechanical components.
Each card includes two measuring zones:

internal radius (inside corner)

external radius (outside corner)

The set contains 20 cards, covering radii from 1 mm to 20 mm in 1 mm increments.

Each card is compact (3×4 cm) and clearly labeled with its radius value for fast identification.

The included storage box is engineered with individual slots sized to each card’s thickness, so the gauges sit securely without rattling or sliding.
Perfect for makers, designers, engineers, and anyone who wants precise radius checks on the bench.

✅ Features

Radii 1 mm → 20 mm (20 cards total)

Each card has inner and outer radius gauges

Compact credit-card style format: 30×40 mm

Clean embossed size labels

Precision storage box with snug, anti-shake fit

Prints flat, no supports required

Great for CNC, 3D printing, woodworking, modeling, prototyping

Use PLA/PETG for rigidity; for maximum wear-resistance, ABS/Nylon works well.