... shaft core, inner shaft core, inner cable Material of flexible shaft core: 70-75#high carbon steel wire.Twisting of flexible shaft core: S ... /Z direction.Specification of flexible shaft core: Φ 2.2 Φ ... ; 12, Φ 14, Φ 16.Application of flexible shaft core: Widely used in motorcycles, electric hand tools, grinders, concrete vibrator ...