Multiquip has long been one of world's premier suppliers of concrete vibrator and accessories. This shaft/head combination proves the point.
1.1 inch (28 mm) head diameter 0.98 inch (25 mm) shaft diameter Total length is 9 1/2 feet (2.9 meters) Weighs 5.1 pounds (1.4 kg) Frequency HZ ranges from 12,000-15,000 vpm