Starrett 20-12 Master Precision Square 12" Blade Catalog- High-precision 90° master square for inspection-grade accuracy
- Hardened, ground, and lapped steel blade
- Heavy-duty base ensures perfect alignment and stability
- Non-graduated blade eliminates distractions for reference work
- Excellent rigidity to resist deflection on large setups
- Starrett-certified accuracy for professional metrology applications
Starrett 20-12 Master Precision Square 12" Blade
by Starrett
$1,112.00
Starrett 20-12 Master Precision Square 12" Blade
The Starrett 20-12 Master Precision Square is engineered for machinists, inspectors, and toolmakers who demand absolute accuracy in layout, setup, and verification work. Crafted from hardened, ground, and lapped steel, this square offers one of the highest levels of precision available, making it a trusted standard in manufacturing and inspection labs worldwide.
Featuring a 12" blade and a solid, rigid beam, the Starrett 20-12 maintains exacting accuracy of up to 0.0001", ensuring dependable performance for even the most critical tolerances. Whether for setting up machinery, checking squareness, or performing high-precision layout work, this master square delivers uncompromising reliability and long-lasting durability.
Key Features
- Ultra-high squareness accuracy (±0.0001" per 6")
- Hardened, ground, and lapped steel blade and beam
- Heavy-duty, non-adjustable, solid beam design for lasting stability
- Precision reference edge ideal for inspection and layout
- Satin-finished blade for reduced glare and easy reading
- Designed for machinists, toolmakers, and quality control inspections
Specifications
| Model | 20-12 |
| Blade Length | 12" |
| Beam Length | Approximately 8" |
| Accuracy | ±0.0001" (per 6") |
| Material | Hardened steel, ground and lapped |
| Type | Type: Master Precision Square |
| Graduations | None (solid reference edges) |
Items Included
- Starrett 20-12 Master Precision Square (12" blade)
- Protective storage case
- Factory inspection certification