Has the care of the shaft rotation, the indicator is always faced with the characteristics of the operator. Used for determining the relative position of the inner and outer centers of the workpiece and the center of the machine tool spindle. Its indicating gauge operator and is easy to read when its clamping drive shaft rotates. Easy to operate. Stable and reliable. Range: 0-3mm Reading value: 0.01mm Uses Widely used in the measurement of mechanical processing Colour:Photo Color Material:Metal Package Contents: 1 x centring dial indicator test indicator 9 x accessory tools Only the above package content, other products are not included. Note: Light reflection 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.