- Double Square 6" Blade Ruler 4R Chrome
- Premium Quality
- 6" Blade 4R Rule
- Heavy Duty hardened, precision ground satin chrome
- Easy to read marked increments
- Made to US Standard Accuracy and Squareness
- Comes with storage case with foam insert
| Type | Double Squares | Blade Size | 6″ |
| Fits | 3-3/4″ Base | Length | 6″ |
| Model No | DS64 | Graduation | 1/8″ 1/16″, 1/32″, 1/64″ |