# Chartpak® Adjustable Triangular Scale Aluminum Engineers Ruler, 12", Long, Silver

-   Designed for the exacting needs of engineers.
-   Change units quickly and easily by rotating dial at either end of scale.
-   12" measuring length, exact calibrations.
-   Manufactured of the highest quality aluminum.
-   Adjusts to 10, 20, 40 and 50 parts to the inch.

Designed for the exacting needs of engineers. Change units by rotating dial at either end of scale. Exact calibrations. Highest quality aluminum. Adjusts to 10, 20, 40 and 50 parts to the inch.

## Details

- **Price:** 23.6 USD
- **Vendor:** Chartpak®
- **Type:** Rulers
- **Tags:** Art & Drafting, CHARTPAK, Drafting Supplies, Drafting/Drawing, Education, Engineering, Length, Mathematics, Measurements, Measuring Device, Ruler, Rulers & Scales, Scale, Schools, Straightedge, Students, Teachers, Tools, Triangular, Triangular Scale, Triangular Scales

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 23.60 USD | In stock |

## Images

- Adjustable Triangular Scale | Engineer's Ruler

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> Source: [Bloom Skins](https://www.bloomskins.com/products/adjustable-triangular-scale-aluminum-engineers-ruler-12-long-silver)
> Updated: 2026-08-29