8'' Master Precision Level in Fitted Box, Accuracy: 0.0002''/10'', #S908-C685 Go to amazon.com Related posts Top 15 machinist level FeatureSize: 8'', Accuracy: 0.0002''/10''Base Width: 46 mm, base with V-grooveAdjustable Main Vial 0.0002''/10'', with cross test vialWith insulating gripDIN 887(& ANSI standard), robust cast iron model