ToolBox Talk #42: HAND ARM VIBRATION SYNDROME (HAVS) As the majority of our operations involves working with our hands in some capacity whether it is hitting a hammer, using power tools, Why Do My Fingers Twitch? Common Causes, Treatments, and When to Seek Medical Help : r RSI Why Do My Fingers Twitch? Common Causes, Treatments, And When To Seek Medical Help 1 HP VibWrite Finger Vibration System Turns Doors Into Touchpads IEEE Spectrum