Ourhigh speed steel standard hobs can available, the following are some specifications for your reference: Material: M2, M35, M42 Module Range:M0.3 to M10 Diametral Pitch: 3DP to 24 DP Start: Single or Multi Start Different accuracy, such as A,B,C grades You can be confident as we always believe in quality. Should any items be of your interest, pls contact me to get more details, so that I can choose the exactly type for you. And you can also send us your specific requirements, weshall be glad tooffer you our services and competitive prices.