1:Outer size: 18" 2:Inner size :7-15/16" 3:Thickness: 0.045" 4:Teeth : 396 5: Harness: HRC 36-41 Specifications Our cotton gin saws is one of the best saw with high quality ,hardness , flatness flexibilityOur engineer who engaged in this field for more than twenty years ,we are confident to provide you what u wanted .Our Advantages 1. Hardness:For the most saw gin HRC can reach to 30-36 ,But due ...