What is Vibration White Finger Syndrome and How To Spot It Do machines cause arm numbness and tingles? What is 'White Finger'? Norton Abrasives UK Manifesting as tingling and numbness through to manual dexterity loss and dreaded Vibration White Finger (VWF) Hand Arm Vibration Syndrome (HAVS), both secondary forms of Raynaud's syndrome, where vibration induced spasming of small Hand Arm Vibration Syndrome (HAVS) Learn the 5 Tiers of Vibration Health Surveillance