... thread, thread, thread ring gauge, thread plug gauge. ♥ Dial indicator inspection♥ External micrometer inspection♥ Gauge block checking♥ Internal micrometer measurement♥ Plug gauge measurement♥ Plug gauge measurement / Snap gauge measurement♥ Ring gauge ... 700 b) Internal DimensionsUsing small-size measuring accessories (Maximum penetrating depth 12, Maximum wall thickness 50) 10~430Using small-size ...