6" / 15 cm Dual Scale Radiopaque Ruler (1/32 in & 1 mm grad) - NIST Certified

A 6-inch/15 cm high definition, lead-free radiopaque ruler with dual scales for measuring scans, X-rays, and fluoroscopies.

• The description claims the ruler provides more accurate measurements due to engraving on the detector side.
• The description states the ruler is NIST certified and comes with a traceable certificate.
• The description claims the ruler is made in the U.S.A. by former members of the U.S. Armed Forces.