SPI Adjustable Double Squares

• Ideal for precision layout work
• Meets Federal Specifications
• Blades are fully hardened and tempered
• Precision ground satin chrome blades for easy reading
• Can be used as a parallel or as a double square

Graduations:

• 4R: 8ths, 16ths, 32nds, 64ths
• 16R: 32nds, 64ths, 50ths, 100ths
• Inch/Metric: 1mm, 64ths, 32nds, 1/2 mm