1pcs 2M Spur Gear 2 Mod 18/19/20/21/22/23 Teeth Flat Motor Gears 45# Steel Cylindrical Gear Bore 6 8 10 12-25mm Pitch 6.28mmHome Improvement > Hardware10,92 USD (≈ 9,77 €)DisponibileSold by AliExpress WWVai al negozio