
Steel worms, 1.5 or 2mm bore plus brass helical gears of 2mm or 1/8" bore. Secure the worm with Loctite and the gear with its grub screw.
Introductory price: £6.00 per set.
39ML and 39WL gearbox kits £8.50 each.
Also now in stock - new 51:1 sets of the same quality - £6.50 per set, £9.00 per ML or WL gearbox kit