无 无 牙齿表面表面表面:牙齿切割 牙齿切割 牙齿切割参考:孔(H7) 2 .5 Number of teeth: 20 Standard circle diameter (mm): φ70.71 Tooth width (mm): 22 Hole diameter (mm): φ20 Total length (mm): 38 Twist direction: R Shape: S1 Boss diameter (mm): φ60 Tip circle diameter (mm):75.71 老板长度(mm):16