Worm M0.4, diam 5.5 x 4 / 2.0, brass single
Precise brass worm, made on CNC milling machine. Modul 0.4 mm, to be pressed on the 2 mm axle. Gear ratio 1 / N , where N is number of wheel teeths.
Best for quiet run of the gearboxes, mainly with worm wheels made from Delrin.