Mod 0.8 Worm Gear Wheel Brass 20 - 60 Tooth Worm Shaft Stainless Steel Precision

Tooth surface Hardness: Hard (＞350HBW). 【20 Tooth】，Gear Ratio 1:20. 【25 Tooth】，Gear Ratio 1:25. 【30 Tooth】，Gear Ratio 1:30. 【35 Tooth】，Gear Ratio 1:35. 【40 Tooth】，Gear Ratio 1:40. - Pitch (P) = 2.51mm.

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