A rubber head is now available for Stone Construction's concrete vibrator line. It is a heavy-duty urethane rubber-coated 1 7/8-in. head specially designed for epoxy-coated rebar applications. The rubber head will not damage the coating on rebar and other forms. The perforated design of the coating provides better vibration and consolidation and cools the oil bath inside the head. With the addition of the rubber head, Stone now offers eight vibrator heads and 11 flexshafts.