Draper 20 Blade Screw Pitch Gauge Set

Folding leaves, individually stamped with accurately formed thread profiles. 20 blades ranging from 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0mm.