Cutter Spare Parts No. 105679 C-axis Drive Tooth Wheel Z=20, M=1,5 For Topcut Bullmer Machine Product Overview The C-axis Drive Tooth Wheel, Part No. 105679 , is a replacement spare part listed for the Topcut Bullmer 7501 cutting machine. It is identified by its gear specifications: 20 teeth (Z=20) and module 1.5 (M=1.5) . When sourcing a replacement drive gear, matching the part number and tooth specifications is important. Even when two gears appear similar, differences in