4.Lead Angle(λ): 0°- 20° 5.Specifications: Shank Type: Module PitchCircleDia.WorkingLengthOverallLengthMorseTaper2264539042.53055336653.54270444804.549.58555095654115 Hole Type: Module PitchCircleDia.OverallLengthHoleDia.560105226661252776311022777130278641202288815032 We can provide all kinds of gear hobs, gear shaper cutters and gear shaving cutters. If you have any requirement, pls contact us. We'll try our best to satisfy you. You're welcome every time, all the time.