Metric Tap Set – M20 x 2.5mm | High-Performance Threading Tool Upgrade your threading toolkit with this premium Metric Tap Set, featuring a thread size of M20 with a 2.5mm pitch, square head size of 11.5mm (0.45"), thread length of 52mm (2.06"), and total length of 105mm (4.12"). Designed for precision and durability, this set includes both a Taper Tap—ideal for starting threads cleanly and accurately—and a Bottoming Tap—perfect for threading to the bottom of blind holes. Crafted from high-quality 9SiCr steel, known for its excellent hardening capability, high wear resistance, and reliable performance in low-speed cutting applications. The straight flute design ensures efficient chip removal and produces clean, burr-free threads. Optimized for hand use with a compatible tap wrench, this set is ideal for re-threading damaged or blocked threads and is suitable for shallow or through holes in materials like mild steel, aluminum, iron, copper, and hard plastics. For best results, always use tapping oil to enhance thread quality and prolong the tool’s lifespan.