Geege Coaxial Centering Indicator Co-Ax Precision Milling Machine Test Dial + Stylus

feature: High quality material durable center search indicator is a secondary measuring tool. Its technical indicators implement enterprise standards and serve as an auxiliary tool for machine tool alignment indicators. For various applications the measuring range is 0-3mm/0.12in equipped with different lengths and shapes of measuring rods to meet different requirements. The centering rod indicator is used to determine the relative position of the inner and outer centers to the center of the machine tool spindle. Rotate the shaft carefully so the indicator is always facing the operator. A centering gauge is a precision measuring instrument suitable for determining the position of workpiece components on vertical or horizontal machine tools. It can work on tables with motorized or manually turned machine tool spindles. scope: material: metal Size: as shown 3 types of centering indicator probes: 1. Straight probe 2. Curved probe 3. Point probe. Measuring range: 100/4 200/8 300/12 Imperial: Range 0.12in Readout: 0.0004in，Metric: Range 0.3mm Readout: 0.01mm(Optional) Preparation before measurement: 1. Install the probe: screw in the fixing screw then insert the probe handle into the socket hole and tighten the screw to fix it. Using this method all probes can be easily replaced. 2. Install the fixing rod: There are three screw holes at the bottom of the chassis. To keep the dial facing the operator and to facilitate the positioning of the joystick the joystick can be screwed into one of the selected tapped holes. 3. Install the alignment indicator on the machine tool spindle chuck. 4. Install the workpiece to be tested on the machine table so that the object to be tested can be placed on the centering table. rotation: 1. The spindle must be rotated during measurement. Spindle should be turned at minimum speed or manually for easy viewing. At this time the spindle speed of the machine tool should not exceed 800 rpm. 2. Before the spindle rotates the fixed rod must be blocked with a stick. Otherwise the entire centering indicator will rotate with the machine and the indicator will not always face the operator. Probe selection: 1. Inner circle centering: generally a straight probe should be used. For larger inner diameters larger probes should be selected. Curved probes can also be used when the diameter is greater than 25.4 mm (liters). 2. Outer circle centering: use a curved probe. Choose a large diameter probe. 3. Small holes with openings less than 3mm/0.12in and the center of the drilling mark : point probes can be used. Package includes: A:1 * Centering gauge3 * Straight Probe3 Elbow1 * Small hole probe1 * Wrench1 bracket1 x Manual1 box（Metric） B:1 * Centering gauge3 * Straight Probe3 Elbow1 * Small hole probe1 * Wrench1 bracket1 x Manual1 box（Imperial） notes: Due to manual measurement please allow 1-2cm/0.39-0.79 error. The color of the item shown in the photo may be slightly different on the computer screen because the screen is not calibrated.