Hayes Handpiece Wisconsin has been servicing the state of Wisconsin and Upper Michigan for 25 years. We are the leading provider of complete handpiece repair and related product sales. Our leadership “ In-Office Staff Training” is No. 1 in the industry. We provide a complete menu of training option on: Handpiece Maintenance, Instrument Processing and Infection Control, Operatory Maintenance, OSHA and CDC Pain Relief. All training is in your office at NO COST. Staff receive CE credit on approved training. Call today to set up your training!