250
Grooved “Go” Ring

252
Grooved “go-no-go” rings

• Up to 15 mm with removable toothed parts

262
Grooved “Go-no-go” Plug Gauges

263
Master for grooved ring

267
Conical Grooved Plug Gauge

280
Stationary grooved mandril

290
Hexagonal “Go-no-go” Plug Gauge

Grooved Calibre

Grooved Ring with Titanium Nitride

Grooved Plug Gauge with Titanium Nitride

Grooved Plug Gauge with Nitride