ITEM NAME:2Pcs/Set Cj0618 Teeth T29Xt21 T20Xt12 Dual Dears Metal Lathe Gear Duplicate D2D7 2Pcs/Set Cj0618 Teeth T29Xt21 T20Xt12 Dual Dears Metal Lathe Gear Duplicate D2D7 Model Number: CJ0618 Direction: Right Hand Material: metal color :silver Tooth Profile: Spur Gear Shape: Cylindrical Gear Processing: Hobbing Standard or Nonstandard: Standard specification : 1. Dual gear: Mould:M2.25 Height:45mm Diameter:30mm Teeth:T29xT21 Weight :0.4kg 2.Slide dual gear : Mould:M2.25 Height:24mm Diameter:12mm Teeth:T20xT12 Weight:0.2kg Package Contents: 1 * fixed double gear 1 * sliding double gear