Precision Reference Standard & Stylus
Check will calibrate your surface analysing
equipment to peak efficiency.

• Economical calibration tool
  
• Shows actual patch mean values of low and high microinch
  
• Surface consists of a series of parallel, uniform, V-shaped grooves, having an
  included angle of 150º between the sides
  
• Not recommended for use in visual or tactual comparison
  
• Set contains metric conversion chart plus signed Certificate of Traceability
  to NIST. Made of pure electro-formed nickel.
• Supplied with protective case.