CO2 Laser Metal Parts Synchronous HTD 3M Gear Pulley 6.35/8/12mm for DIY CO2 Laser Engraving Cutting Machine

A.20Teeth Bore6.35mm(with edge)
B.20Teeth Bore8mm(with edge)M5
C.20Teeth Bore8mm(without edge)M5
D.20Teeth Bore12mm(with edge)M5
E.24Teeth Bore6.35mm(with edge)M5
F.24Teeth Bore6.35mm(without edge)M5
G.24Teeth Bore8mm(with edge)M5
H.24Teeth Bore8mm(without edge)M5
1.24Teeth Bore12mm(with edge)M5
J.24Teeth Bore12mm(without edge)M5