Machinists and mechanics, this magnetic base is serious business for holding your dial indicators rock-steady! With a massive 176lbs (80kg) maximum pulling force, this thing isn't going anywhere once you switch it to ON position. The pole is made from high-quality aluminum that's both corrosion-resistant and durable enough for shop environments. The 360° flexible adjustment means you can position your indicator exactly where you need it - no more awkward angles or compromised measurements. The clamping hole measures approximately 9.5mm in diameter, which makes it compatible with most digital indicators on the market. The ON/OFF control is simple and effective, though the magnets do work better on thicker metal parts as you'd expect. The build quality feels substantial - this isn't some flimsy import that'll fail after a few uses. Whether you're doing precision measurements in a machine shop, working on automotive projects, or any application where you need stable indicator mounting, this magnetic base delivers professional performance without the professional price tag. The stability is impressive - once it's locked in place, your indicator stays put without any wobble or drift. If you work with dial indicators regularly, this magnetic base will quickly become one of your most trusted accessories.