Introducing the 'Draper 20 Blade Screw Pitch Gauge Set' - your precision companion. This set is carefully crafted featuring easy-to-fold leaves, each etched with precision-formed thread profiles. With 20 diverse blades ranging between 0.4mm and 6.0mm, this set offers unmatched variability and versatility. Embrace accuracy, opt for reliability, choose the Draper 20 Blade Screw Pitch Gauge Set.