The Sure Speed concrete vibrator motor produces uniform, repeatable vibration for any head and shaft combination. The motor design controls vibrator speed, lowers the amount of concrete bleeding, and reduces loss of air entrainment and concrete segregation due to over vibrating. It allows the operator to be in control of the process by eliminating the speed variations inherent with existing vibrators affected by motor size, head size, and shaft length. Wyco Tool. 800-233-9926.