These are CNC machinedin house "Dizzy" shafts by trained & skilled Engineers, they are then polished to increase the strength.
Lightened distributor drive shaft classic mini (A series)
Lightened distributor drive shaft classic mini (A+)
MGB DISTRIBUTOR DRIVE SHAFT AND DRIVE HOUSING [62-80] 12G4499 1G2285
VW Aircooled Bus Beetle distributor drive shaft dizzy T2 T3 T1 engine
Ford Aquaplane Distributor Drive Shaft Coupling AP-12249
VW Aircooled Bus Beetle distributor drive shaft shim spring Kit T1 engine