Models View all Spur Gear 28 & 29 Teeth 8 273 3 Spur Gear 26 & 27 Teeth 8 137 0 Spur Gear 24 & 25 Teeth 10 188 0 Spur Gear 22 & 23 Teeth 9 109 0 Spur Gear 20 & 21 Teeth 9 183 0 Spur Gear 18 & 19 Teeth 7 123 0