Slater Tools: Number one for Rotary Branding
Six Lobe (Hexalobular) Plug Gages

Go/ No-Go Gages

Slater Tools manufactures standard and custom inspection gages for your specific application. Use our Go and No-Go Gages to inspect your parts for machining process variations such as form size, twist, tool wear, etc.

Slater Tools Gages are held to extremely tight tolerances with extremely fast delivery times. Go/ No-Go Gages are produced from oil hardened M2 high speed steel and can be custom made to any shape or size to fit your custom needs.

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  • Go/ No-Go Gages
    Six Lobe (Hexalobular) Plug Gages

  • Order: Refer to individual order numbers below
Six Lobe (Hexalobular) Plug Gages
T Size

Six Lobe GO Gage Member Order #

Six Lobe NO-GO Gage Member Order #

T15 G508-15 NG508-15
T20  G508-20 NG508-20
T25  G508-25 NG508-25
T27  G508-27 NG508-27
T30  G508-30 NG508-30
T40  G508-40 NG508-40
T45  G508-45 NG508-45
T50  G508-50 NG508-50


  • Gages are available as Go/No-Go sets or as single ended gages
  • Each gage order comes with single or double-ended handle
  • Long form gage certification is available upon request
  • Custom plug gages per customer specifications can be manufactured
  • Ideal for use with Slater Tools Rotary Broaches
  • Manufacturing tolerances are held within .0002 inches (.005 mm)