MAIN APPLICATION: The bore dial gauge is used to measure internal dimensions of work pieces by comparative method.STAINLESS STEEL MATERIAL: The inner scale dial gauge is made of stainless steel material, which ensures high durability and wear resistance.HIGH HARDNESS: The inner diameter indicator measuring tool is exquisite and applicable with high hardness, and it is strong and durable.SPECIFICATION: The measuring range of inner scale dial gauge is 50-160mm, and it has high measuring accuracy which is 0.01mm.PORTABILITY: The bore dial gauge has professional and practical design with beautiful appearance, and it's convenient to carry and use.Condition: 100% NewItem Type: Dial Bore GaugeMeasuring Range: 50-160mmAccuracy: 0.01mmColour: silverMaterial: stainless steelPackage Contents:1 x inner diameter measuring cylinder gauge1 x inner diameter side measuring rod1 set x connector1 x box (random color, don't accept the specified color)1 x English manualOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.