The DEWALT 20V MAX Pencil Vibrator Kit (DCE531M1), is perfect for both industrial and residential contractors. Offering the convenience of a flexible, four-foot shaft and the reliability and mobility of battery power, this pencil vibrator is an ideal option for small scale jobs ranging from minor street repair to setting streetlight footers to filling insulated concrete forms. The four-foot long flexible shaft makes for easy use and long reach, the 1-1/8" diameter vibrator delivers maximum consolidation power while the tool operates at 14,000 vibrations per minute (under load) delivering maximum consolidation efficiency.