Specification:Name: Bevel GearMaterial: 304 Stainless SteelModule: 2MRotational Speed Ratio: 1:1Tooth Angle: 90°Number of Teeth: 20 25 30 TeethKeyway Bore:12mm (keyway 4mm)14mm (keyway 5mm)15mm (keyway 5mm)16mm (keyway 5mm)17mm (keyway 5mm)18mm (keyway 6mm)20mm (keyway 6mm)22mm (keyway 6mm)24mm (keyway 8mm)25mm (keyway 8mm)28mm (keyway 8mm)30mm (keyway 8mm)Tooth Surface Hardness: Hardened Tooth SurfaceNote:1.Bevel gears are single price, please decide to buy consistent with their precise needs of the number of options.2.The link bevel tools is 1:1 pace ratio, can only be utilized in the same modulus, an analogous number of teeth.3.Batch different, enamel fullness is different, would not affect the use, intellect please be careful to buy.Package:Packing : Plastic bag / Carton box.Quantity : According to your Choose!