Usage Tips:Precision Compatibility: Designed to fit most dial indicators, the set features M2.5 threads which are standardized for seamless connectivity. perfect both professional and hobbyist use, the extension rods help extend the reach of your gauge tools in intricate measurements. Versatile Measurements: The set includes six extension rods ranging from 10mm to 100mm, allowing users to achieve diverse depth measurements in a of settings. Customize the effective length by combining various rods without the inconvenience of relocating your device. Extended Functionality: Each rod facilitates an extended reach of up to a total of 315mm, accompanied by 5mm spacing lengths. This distance precision ensures that you can maintain the setup of your indicator or gauge while accurate readings in otherwise unreachable spots. User-friendly Design: Not only are these rods simple to assemble, but they also provide a firm grasp ensuring that they stay in place during measurements. The construction excludes the thread shank in length considerations, optimizing available measurement extensions. Comprehensive Set: This package is equipped with 6 lengths: 10mm, 20mm, 40mm, 60mm, 80mm, 100mm. Each extension rod is crafted with a 5mm diameter, supplying users with a robust toolset for precise adjustment in varying depth gauges and indicators. Fits Dial indicator depth gauge etc interchangeable measurer Tool Color: Silver Material: Metal Package Contents: 6 x indicator extension stem rod 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.