Boomgood Machinist Square Set – 4-Piece Hardened Steel Right Angle Ruler DIN 875 Grade 1

Precision You Can Rely On

The Boomgood Machinist Square Set combines substantial stability with dependable accuracy, delivering clean, true right angles for layout, setup, and inspection tasks. Crafted from hardened steel and finished to DIN 875 Grade 1, this four-piece set provides a durable reference on every project.

Thoughtful design choices merge strength with precision:

• Four precisely sized squares: 63x40 mm, 80x50 mm, 100x63 mm, and 160x100 mm, covering small to large layouts
• Blade permanently fixed to the beam via tapered self-locking rivets for unwavering rigidity
• Beams and blades are lapped and polished for straightness and parallelism
• Inside notch helps you align internal corners with confidence
• Heavy base design adds weight for stability during use
• Plastic case included to protect precision during transport and storage

Real-world use cases invite a flexible, measurement-minded workflow:

• In laboratories for layout checks, setup calibration, and instrument alignment
• In woodworking and metalworking for consistent 90-degree references during assembly
• During machine setup to align fixtures, guides, and mounting surfaces
• For quick relative checks on workpieces, jigs, and fixtures to maintain square accuracy

Care and handling: before first use, wipe off the light protective oil from the surface. When not in use, return the set to its case to help preserve precision over time. This tool aims to be a reliable standard for your squaring tasks, offering a balance of weight, feel, and accuracy without making guarantees about outcomes.