Features • Precision Measurement Tool: Achieve high accuracy with a range of 50-160mm for inner diameter assments of various workpieces • Reliable Self-Centering Design: Features an excellent guiding bridge for accurate and dependable measurements, ensuring consistent results every time • Versatile Probe System: Equipped with an active probe and interchangeable tips for adaptability in measuring different aperture sizes effortlly • Aluminum Alloy Construction: Built to last, this measurement tool provides long service life while maintaining its accuracy and reliability • User-Friendly : Designed for easy handling, this cylinder gauge simplifies the measurement proc, making it ideal for both profionals and enthusiasts Features: 1、Suitable for comparative measurement of the inner diameter of the workpiece, machining measurement 2、With an excellent guiding bridge, self-centering is accurate and reliable 3、The measuring head has an active probe at one end and an interchangeable probe that is changed according to the measured aperture. 4、Made of aluminum alloy material, and long service life 5、High accuracy, the measuring range is 50-160mm Specification: Item Type: Internal Diameter Gauge Measuring Range: 50-160mm Accuracy: 0.01mm Material: Aluminum Alloy Size: 50-160mm Measuring Range: 50-160mm Package List: 1 X Internal Diameter Gauge with Handle 1 X Guard Bridge (55mm) 12 X Side Head (No.12:105mm) (No.11.:100mm) (No.10:95mm) (No.9:90mm) (No.8:85mm) (No.7 80mm) (No.6 :75mm) (No.5:70mm) (No.4:65mm) (No.3:60mm) (No.2:55mm) (No.1:50mm) 4 X Interchangeable Side Head (3 2 1 0.5) 1 Pack Installation Internal Diameter Gauge Accories 1 X Plastic Box (the color of box is random which has black and blue) Note: betweendiv>Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.between Package List 1 X Internal Diameter Gauge with Handle 1 X Guard Bridge (55mm) 12 X Side Head (No.12:105mm) (No.11.:100mm) (No.10:95mm) (No.9:90mm) (No.8:85mm) (No.7 80mm) (No.6 :75mm) (No.5:70mm) (No.4:65mm) (No.3:60mm) (No.2:55mm) (No.1:50mm) 4 X Interchangeable Side Head (3 2 1 0.5) 1 Pack Installation Internal Diameter Gauge Accessories 1 X Plastic Box (the color of box is random which has black and blue)