Operate both your DEWALT POWERSHIFT™ VIbrator and Backpack Vibrator with the DEWALT POWERSHIFT Head and Shaft offerings. Available for a wide range of concrete placement applications, these heads and shafts come in 16 different product combination offerings including 1.5 in., 1.75 in., 2 in., and 2.25 in. for heads and 7 ft., 10 ft., 16 ft., and 21 ft. for shafts. DeWalt 2" Psad -21' Shaft DCPS3506