Item Type: Gear Kit Material: HT250 Gray Iron Specification: TypeDiameterThicknessTooth T80 Gear83mm / 3.3in7mm / 0.3in80 Tooth T60 Gear62mm / 2.4in7mm / 0.3in60 Tooth T50 Gear52mm / 2in7mm / 0.3in50 Tooth T45 Gear48mm / 1.9in7mm / 0.3in45 Tooth T40 Gear42mm / 1.7in7mm / 0.3in40 Tooth T35 Gear37mm / 1.5in7mm / 0.3in35 Tooth T30 Gear32mm / 1.3in7mm / 0.3in30 Tooth T25 Gear26mm / 1in7mm / 0.3in25 Tooth T20 Gear20mm / 0.8in7mm / 0.3in20 Tooth Duplex Gear68mm / 2.7in, 50mm / 2in45mm / 1.8in43 Tooth, 31 Tooth Duplex Gear50mm / 2in, 30mm / 1.2in24mm / 0.9in30 Tooth, 18 Tooth Belt Pulley29mm / 1.1in20mm / 0.8in118PCS IN 1 SET: Including 18pcs metal gears, with different numbers of teeth and sizes, with strong practicability. 2EXCELLENT MATERIAL: Made of excellent HT250 gray iron material, with rustproof surface, wear and corrosion resistant. 3MULTIPLE TYPES: Equipped with 2pcs duplex gears and a moter belt pulley to meet more processing needs. 4FINE PROCESSING: These gears using fine milling techniques to polish to ensure high accuracy and stability. 5LATHE ACCESSORIES: Widely used for CJ0618 mini lathe or metal cutting machine, with strong compatibility. 2 x T80 Gear 2 x T60 Gear 2 x T50 Gear 2 x T45 Gear 2 x T40 Gear 2 x T30 Gear 1 x T35 Gear 1 x T25 Gear 1 x T20 Gear 2 x Duplex Gear 1 x Moter Belt Pulley