校表环规是以指定位置垂直于轴线的中截面内孔直径作为工作长度的高准确度尺寸量具，通过它对测孔仪器及量具进行检定和校准。

CUSTOM CYLINDRICAL RING GAGES

• Class XX, X, Y, Z or ZZ
• Direction of Tolerance:
  • GO (Minus Tolerance)
  • NoGo (Plus Tolerance)
  • Master (Bilateral Tolerance)
• Materials:
  • Tool Steel 60/65 Rc 
  • Chrome 70/72 Rc 
  • Carbide 90/92 Ra
• Diameter Range:
  • Steel & Chrome: .0600" (1.52mm) - 12.2600" (311.40mm)
  • Carbide: .0600" (1.52mm) - 1.5100" (38.35mm)
• Marked with diameter and direction of tolerance
• Larger sizes available to quote
• Certifications:
  • Certificate of Accuracy included.
  • ISO 17025 Accredited Certificates & Non-Accredited Certs may be purchased.