• Modular construction, universal bore gage system for larger bores (M-678 and M-68-FB)
• Large measuring range (±1.5 mm)
• Range of application:
  ø 26.3 mm yo 330 mm/1.03" to 13" (ø 38.5 mm to 348 mm/ 1.5" to 13.7" for blind bore FB)
• Calibration in setting master or micrometer
• Adaptability to most bore gaging applications
• Style blind bore (FB) in standard program
• Tungsten carbide contact points
• Holders and depth extensions are manufactured from temperature stabilized material, ensuring minimal gaging errors

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