1pcs 08B Chain Gear 9 10 11 12 13 14 Teeth 45# Steel Precision Industrial Drive Sprocket Wheel Keyway Bore 10-28mm Pitch 12.7mmHome Improvement > Hardware5,60 USD (≈ 4,59 CHF)6,59 USDDisponibileSold by AliExpress WWVai al negozio