Electronics engineers and PCB testers, this 100-piece pogo pin set is exactly what you need for reliable testing applications! These P125-A model pins feature brass construction that provides excellent conductivity and corrosion resistance. With a 2.02mm tube diameter and 33.35mm total length, they're perfect for various testing scenarios from PCB parameter testing to burn-in testing and data writing. The concave head design ensures good contact with test points, while the spring mechanism provides consistent pressure for reliable connections. The 1.7mm needle shaft diameter and 2.4mm sleeve drilling size make them compatible with standard test equipment. These are widely used in electronic equipment, industrial applications, automotive testing, solar systems, and communication products. The 100-piece quantity means you'll have plenty for current projects and replacements. Installation is straightforward - just insert the probe into the needle cover and solder the cover to your test equipment. Whether you're building test fixtures, repairing equipment, or doing quality control, having quality pogo pins on hand saves time and ensures accurate test results. For the price, this is one of those essential components that every electronics workshop should have in stock!