steel extension rods are designed to provide additional length and stability for your dial indicators. These rods are highly and resistant to wear, making them ideal for use in harsh industrial environments. With these extension rods, you can achieve greater accuracy and consistency in your measurements, ensuring good results every time. Features -Color:Black -Material:High-carbon steel -Size:15.30X3.20X2.00cm/6.01X1.26X0.79in -Hole diameter: 8 mm - carbon steel: constructed from carbon steel, this extension rod ensures strength and performance -Stable and accurate: the square design enhances rigidity and grip, ensuring stable and precise measurements -Wide compatibility: compatible with a variety of measuring tools, making it versatile for multiple applications -Quick and easy setup: designed for easy and quick installation, allowing for fast and secure clamping of dial indicators -Productivity improvement: the height gauge adapter improves productivity with its userfriendly and secure installation process Package list: 1 x height ruler extension rod